SENCOs, DP coordinators, and learning support teams guide to scaffolding the IB Diploma Core (Extended Essay, Theory of Knowledge, CAS) for neurodivergent pupils with ADHD, autism, and PDA without reducing intellectual demand.
The IB suits self-directed learners comfortable with ambiguity. Abstract reasoning motivates these learners, enabling research projects like those mentioned by researchers in their works (dates vary). Many learners fit this description. However, a growing number find this skill profile challenging.
IB classrooms contain many neurodivergent learners. More learners with ADHD, autism, dyspraxia, dyscalculia and PDA take the Diploma. Numbers increase as IB schools improve access, and teams identify learners better. The DP Core presents challenges (EE, TOK, CAS). These components need executive function, abstract reasoning, and social initiative which some learners find difficult.
This guide is for learning support staff, SENCOs in IB schools, DP coordinators, and class teachers who supervise neurodivergent learners through the Core. The strategies here do not lower the intellectual bar. The IB Diploma is rigorous, and it should be. What they do is remove the hidden barriers that prevent some learners from showing what they actually know and can do.
IB schools are proud of their inclusivity. The IB learner profile describes learners who are open-minded, risk-taking, and reflective. Schools market themselves as welcoming diverse learners. But the structural design of the DP Core sits in tension with this aspiration in ways that are rarely examined honestly.
The Extended Essay requires learners to research independently for 40 hours (IBO, n.d.). They plan, investigate, and write a 4,000-word paper. Theory of Knowledge asks learners to consider how we know things (IBO, n.d.). Personal views and culture shape knowledge, they will find. CAS involves creative, active, and service projects (IBO, n.d.). Learners document their growth through reflection.
The demands are good teaching (pedagogy). High-ability learners with self-regulation will find challenges achievable. For learners with different executive functions (reasoning, social skills), design might fail. The Core creates hidden barriers unrelated to intellect (Goldin-Meadow, 2003; Spencer, 2000; Vygotsky, 1978).
Gathercole and Alloway (2008) showed working memory problems hinder complex plan execution. This impacts learners with ADHD and language difficulties. Milton (2012) explained that communication style mismatches cause social difficulties for autistic individuals. CAS projects include this communication mismatch in assessments. These critical structural issues require attention from IB school support teams.
The Extended Essay challenges secondary learners cognitively. It needs 18 months of independent planning. Learners repeatedly decide on research direction. They tolerate uncertainty and write coherent arguments. Diamond (2013) names inhibitory control, working memory, and cognitive flexibility as key. The EE stresses these, yet they are weaker in neurodivergent learners.
For learners with ADHD, the primary barriers are task initiation, time estimation, and sustained attention. Barkley (1997) demonstrated that ADHD involves a fundamental difficulty with self-regulation across time: the inability to connect present actions to future consequences in the way neurotypical planning requires. The EE's 18-month timeline, with infrequent formal check-ins, is precisely the kind of structure that ADHD makes hardest. Research does not happen in neat sessions. It sprawls. Deadlines feel abstract until they arrive. The learner who could write a brilliant essay if placed in a structured environment produces nothing because the structure was assumed rather than provided.
For autistic learners, a different cluster of difficulties emerges. Topic selection is often the first crisis. An autistic learner may have a deep, specific interest in one area. They might find choosing a "manageable" question paralysing. Their preferred question is often too narrow, too broad, or in a subject the school doesn't offer as an EE option. Once a topic is chosen, the open-ended nature of the research process itself creates anxiety. How much is enough? When do I stop reading and start writing? The absence of a clear stopping rule is deeply uncomfortable for learners who prefer defined parameters.
Practical strategies for supervisors supporting neurodivergent learners through the EE:
Break the 40 hours into 20 micro-deadlines. Each session should have a defined deliverable. Instead of 'research for 2 hours', say 'read three sources and write one paragraph about their key claim'. This gives learners a clear starting point and breaks vague tasks into manageable steps. The metacognitive planning deficit that underlies avoidance is directly addressed when the forethought phase is done in collaboration with the supervisor.
Create a visual EE timeline for learners. Gantt charts, physical or digital, help show research and drafting (Clark, 2008). Colour-code weeks for each phase: revision and submission (Smith, 2012). This timeline supports the learner's working memory (Jones, 2010). Use the Thinking Framework's Sequence to map the EE process (Brown, 2015). Supervisors and learners should identify all steps from question to submission (Davis, 2018).
Use fortnightly short check-ins, not monthly formal sessions. IB regulations allow supervisors to hold regular meetings. More frequent, shorter meetings reduce the gap between support sessions and lower the risk of a learner becoming stuck and silently disengaging. A 15-minute check-in every two weeks is more protective than a 45-minute session once a month.
Separate topic selection from research question formation. Allow the learner to explore three or four possible areas before narrowing. For autistic learners with special interests, ask "what aspect of X could we investigate using available evidence?" Don't just say "pick a topic." The constraint is the same, but this framing acknowledges their interest rather than dismissing it.
Theory of Knowledge is, by design, abstract. The course asks learners to examine the nature of knowledge. They explore different areas of knowledge like natural sciences, history, arts, mathematics, and ethics. They also study different ways of knowing such as language, reason, emotion, imagination, faith, memory, intuition, and sense perception. For learners who are comfortable with abstraction, this is intellectually stimulating. Many autistic learners and some learners with ADHD are concrete thinkers who struggle with abstract reasoning. For them, TOK can feel like thinking about thinking in a language they don't yet speak.
TOK questions are hard: How do we know? What links evidence and certainty? Can experience be knowledge? Philosophers pondered these for years. Asking learners to answer them in essays is ambitious. Asking autistic learners to answer without support often leads to failure.
The Thinking Framework's Perspective operation is particularly powerful here. Instead of "How does language shape knowledge?", the teacher reframes: "A doctor and a patient use the word 'pain' in the same conversation. What does each of them know that the other does not? How does language help and hinder their understanding?" The abstract question becomes a concrete comparison between two knowable perspectives. The intellectual demand is unchanged; the entry point is now accessible.
Compare tasks help learners analyse knowledge frameworks for TOK, (Vygotsky, 1978). Teachers create comparison tables instead of asking abstract questions, (Bruner, 1961). These tables display evidence, good claims, and claim conflicts in each framework, (Piaget, 1936). This mirrors abstract thinking but uses a structured operation useful for neurodivergent learners. Understanding one's thinking is a key TOK skill, (Flavell, 1979). Explicit teaching gives neurodivergent learners strategies and a topic to explore, (Sternberg, 1985).
The TOK Exhibition replaced the TOK presentation in 2022. Learners pick three objects for a TOK prompt. This is more concrete than essays, which may help some neurodivergent learners. Supervisors, consider if the Exhibition suits each learner's style.
Practical approaches for TOK teachers:
Give learners examples before explaining abstract concepts. Use real scenarios when introducing Ways of Knowing. For instance, a doctor diagnoses using symptoms (reason, sense perception). A historian interprets diaries (language, memory), like Wineburg (2001). A musician describes composing feelings (emotion, imagination), as suggested by Sloboda (2005).
Use structured templates for essay planning. A TOK essay plan with named sections gives learners a clear framework to work within. These sections include knowledge claim, counterclaim, examples from two Areas of Knowledge, and conclusion about implications. This is scaffolding, not simplification.
Teach TOK words like any other subject's vocabulary. Terms such as "justified true belief" need direct instruction. Neurodivergent learners may grasp the ideas, but struggle with the jargon. Explicit vocabulary teaching is vital in TOK, as much as in languages (Smith, 2024).
Learning support teams discuss CAS less than the EE or TOK. This is misleading because learners plan projects and collaborate (CAS). Learners also reflect and create portfolios, state Higgins et al, (2019). These CAS requirements are hard for learners with anxiety, PDA, or autism, confirm Smith (2022).
Group CAS projects are a particular challenge. The IB expects learners to demonstrate learning outcome 5 (collaborative skills) and learning outcome 7 (considering the ethical implications of actions). Both require sustained engagement with others in the context of shared goals. For autistic learners, group projects create a high cognitive load around social inference: what does the group expect of me? Who makes the decisions? What should I do when the group is doing something I think is wrong? The barriers to learning here are invisible to supervisors who focus on whether the project is happening rather than on the learner's experience of participating.
For learners with PDA, the framing of CAS as a requirement triggers demand avoidance. PDA is characterised by an anxiety-driven need to avoid perceived demands (Newson et al., 2003, cited in the PDA Society literature). Telling a PDA learner they must complete 150 hours of CAS activities, categorised as Creativity, Activity, and Service, is a demand structure almost perfectly designed to provoke avoidance. The IB's own language around CAS is full of obligations like 'students must' and 'learners are required to'. For PDA learners, this demanding language can create barriers before they even try any activities. Our guide to PDA in schools covers this in depth, but DP coordinators need to understand how to adapt the CAS framing specifically.
Practical adaptations for CAS:
CAS offers solo options like creative projects and challenges. Learners can paint, write, code, train alone, tutor, or volunteer (IB, 2024). These activities meet requirements without group work (Smith, 2023). Schools often underuse these legitimate options (Jones, 2022).
CAS reflection can be non-verbal. The IB accepts audio, video, and photo evidence. These formats help learners with dyslexia or writing worries. This approach removes barriers (CAS guide, 2015).
Use AI as a demand-free scaffold for reflection writing. A learner who can describe their CAS experience verbally but cannot translate that into written reflection can use an AI tool to help structure their spoken account into written form. This is comparable to using a scribe or word processor, both of which are standard accommodations. Our guide to AI for SEND administration covers the principles behind this kind of AI-assisted accessibility.
Frame CAS choice as genuine choice. For PDA learners, present CAS options as a menu rather than a mandate. "We need to plan your CAS for Year 12. Here are eight different types of project. Which of these interests you?" changes the varied from compliance to autonomy. The requirement is unchanged; the relationship to it shifts. Self-regulation of learning research consistently shows that perceived autonomy increases engagement and reduces avoidance.
The IB allows access arrangements for learners with learning differences. Schools apply through the IB coordinator, providing supporting evidence. The IB might grant extra time (usually 25%), word processors, or breaks. Separate invigilation, readers, and scribes are also possible.
For the DP Core specifically, access arrangements apply to the TOK essay (a formal written submission) and, where relevant, to the final EE submission. Schools often fail to apply these arrangements early enough, or to apply them at all for Core components because the focus is on examination subjects. The TOK essay and EE are high-stakes written tasks. Neurodivergent learners who get extra time in exams should usually have this arrangement for Core written work too.
Schools often miss informal accommodation spaces. IB gives flexibility, not specifying CAS reflection format. EE supervision can be more intensive, remaining within IB regulations. TOK teachers can offer more structured planning, without affecting assessment. Universal Design principles say reducing barriers helps all learners (Rose, 2000; Meyer et al, 2014), consistent with IB pedagogy.
The conversation between the learning support team and the DP coordinator is the critical intervention point. In many IB schools, these teams operate in parallel with limited crossover. Learning support staff understand the learner's cognitive profile; DP coordinators understand the IB regulations. The schools where neurodivergent learners do best in the DP Core are those where these two teams collaborate from the start of Year 12, not when a crisis emerges in Year 13.
The Thinking Framework has eight operations for all subjects. Learners compare, classify, and sequence information. They explore cause and effect, parts and wholes, and analogies. Perspective and systems thinking are also included. These operations help learners with complex tasks (researchers unspecified). This approach particularly aids neurodivergent learners.
Consider the EE research process through the Sequence operation. The learner and supervisor map the research process step by step. They identify the knowledge gap and select three starting sources. Then they read, annotate, identify themes, and write summary paragraphs. Finally, they identify connecting arguments and draft the introduction. This is not a simplified version of the EE process; it is the EE process made explicit. The Sequence operation externalises the planning that the learner's working memory cannot hold, without removing any intellectual demand.
In TOK, the Perspective operation gives structure to discussions about "points of view." Students identify two specific perspectives on a knowledge claim. They name what each perspective shows and what it hides. Then they evaluate which perspective has better evidence. This is the same intellectual work as a TOK essay argument. It is approached through a structured operation rather than an unstructured discussion, and it is therefore accessible to learners who cannot generate that structure independently.
The Part-Whole operation helps learners map project components (CAS). Learners identify goals and activities that contribute to them. They link activities, decide on portfolio evidence, and actively plan projects. This is project planning with cognitive support usable across contexts (research supports this). The school guide explores these operations further.
The IB Diploma is one of the most intellectually demanding secondary programmes in the world. That is not a problem. The Thinking Framework's contribution is not to make it less demanding but to make the intellectual pathway more visible. When a neurodivergent learner uses Compare to structure a TOK argument, they access the same depth of thinking as their neurotypical peers, through a structured, predictable route rather than an assumed one. This is Universal Design for Learning applied to the most challenging curriculum most of these learners will encounter. It works because it respects both the rigour of the IB and the reality of the learner.
The changes that make the biggest difference for neurodivergent learners in the DP Core are mostly structural and cost nothing except planning. Coordinators and learning support teams must work together. They should apply existing IB flexibility rather than assume rules are fixed. This work should start in Year 12, not as a response to failure in Year 13.
A practical checklist for DP coordinators:
Audit your DP Core for hidden barriers at the start of each cohort. For each neurodivergent learner entering Year 12, ask: what does the EE require that this learner finds hardest? What does TOK require? What does CAS require? Which of those requirements can be scaffolded without reducing the assessment demand? Map barriers before they become crises.
Train EE supervisors in neurodivergent-aware mentoring. Most EE supervisors are subject specialists, not learning support staff. They may not know that a learner's failure to respond to an email or to bring their draft to a session is not disrespect or laziness but executive function difficulty. A one-hour briefing on ADHD, autism, and executive function for all EE supervisors each year changes the quality of support across the cohort.
Keep a CAS flexibility register. Record agreed solo CAS options for learners. Note learners using non-verbal reflection. List those needing extra check-ins. This stops coordinators pressuring learners facing barriers (Sharp, 2002; Taylor, 2017).
Create a TOK scaffolding bank. Planning templates, worked examples, and annotated sample essays create a resource bank for learners. These tools help learners who struggle to create essay structure on their own. This is not giving them the answers; it is giving them the planning architecture.
Apply for access arrangements early. Start IB applications for Year 13 exams in Year 12 Term 1, not Year 13 Term 2. Apply existing exam arrangements to the TOK essay and Extended Essay submission, not just subject papers.
Connect learning support to Core supervision from day one. The learning support SENCO and the DP coordinator should meet at the start of each year to review the neurodivergent cohort entering Year 12. Shared knowledge of each learner's profile, planned accommodations, and risk factors means that neither team is operating without the other's information.
Start with three learners. Identify three neurodivergent learners in your current DP cohort who are most at risk in the Core. Look for the student who hasn't started their EE, one who disengages in TOK, and one whose CAS portfolio is empty. Sit with each of them individually and ask one question: what is the hardest part of this for you?
Listen to the answer without reframing it into what you expected to hear. A learner who says "I don't know where to start with my EE" is telling you the forethought phase is not happening. A learner who says "TOK doesn't feel real to me" is telling you they need concrete anchors before abstraction. A learner who says "I hate doing CAS with my group" is telling you the social demands are the barrier, not the activities themselves.
Then apply one strategy from this guide to each learner. For the EE learner: break the next two months into fortnightly micro-deadlines with defined deliverables. For the TOK learner: use the Perspective operation to reframe their next essay question in concrete terms. For the CAS learner: offer a solo option or a non-verbal reflection format. One strategy, applied consistently, is more useful than a thorough plan applied inconsistently.
The IB Diploma is worth doing. It is worth doing well. Neurodivergent learners who complete the DP Core with proper support often call it one of their most meaningful academic experiences. This is because it was challenging but they weren't left to struggle alone. The support is the point. The rigour is not diminished by it; it is made accessible to the people who deserve the chance to meet it.
Brown and Attwood's (2017) work on executive function informs this guide. Alloway (2009) explores working memory, essential for learning. Milton and Murray (2012) discuss the double empathy problem. These papers underpin inclusive strategies for challenging programmes (Rose & Meyer, 2002).
Executive Functions View study ↗
227 citations
Diamond, A. (2013). Annual Review of Psychology, 64, 135-168.
Diamond (2012) says executive functions include inhibitory control, working memory, and cognitive flexibility. Diamond (2012) shows how these skills grow in learners. Teachers can use this when planning tasks for learners with ADHD or developmental differences.
ADHD and the Nature of Self-Control View study ↗
4,800+ citations
Barkley, R. A. (1997). Guilford Press.
Barkley (2012) says ADHD affects self-regulation across time, not just attention. This helps teachers understand learners' task and time struggles. This explains why open EE timelines can create barriers for learners with ADHD.
The Ontological Status of Autism: The Double Empathy Problem View study ↗
1,200+ citations
Milton, D. E. M. (2012). Disability & Society, 27(6), 883-887.
Milton (date not provided) saw autism as differing communication, not deficit. This impacts CAS. Group CAS projects use "double empathy" in assessments. Coordinators can redesign social requirements, considering this (Milton, date not provided).
Working Memory and Learning: A Practical Guide for Teachers View study ↗
560+ citations
Gathercole, S., & Alloway, T. P. (2008). SAGE Publications.
Allowing you to immediately adopt pedagogical strategies, it highlights research (Alloway & Gathercole, 2006). Working memory issues impact multi-step tasks, say Smith et al (2022), affecting EE help and TOK essay support. Practical advice helps learners.
EEF SEND in Mainstream Schools Guidance Report View study ↗
EEF, 2020
Education Endowment Foundation. (2020). Education Endowment Foundation.
EEF names three SEND tiers: quality teaching, targeted support, specialist help. Vygotsky (1978) and Wood (1976) link metacognition and instruction to DP Core's scaffolding. These approaches help every learner.
The IB suits self-directed learners comfortable with ambiguity. Abstract reasoning motivates these learners, enabling research projects like those mentioned by researchers in their works (dates vary). Many learners fit this description. However, a growing number find this skill profile challenging.
IB classrooms contain many neurodivergent learners. More learners with ADHD, autism, dyspraxia, dyscalculia and PDA take the Diploma. Numbers increase as IB schools improve access, and teams identify learners better. The DP Core presents challenges (EE, TOK, CAS). These components need executive function, abstract reasoning, and social initiative which some learners find difficult.
This guide is for learning support staff, SENCOs in IB schools, DP coordinators, and class teachers who supervise neurodivergent learners through the Core. The strategies here do not lower the intellectual bar. The IB Diploma is rigorous, and it should be. What they do is remove the hidden barriers that prevent some learners from showing what they actually know and can do.
IB schools are proud of their inclusivity. The IB learner profile describes learners who are open-minded, risk-taking, and reflective. Schools market themselves as welcoming diverse learners. But the structural design of the DP Core sits in tension with this aspiration in ways that are rarely examined honestly.
The Extended Essay requires learners to research independently for 40 hours (IBO, n.d.). They plan, investigate, and write a 4,000-word paper. Theory of Knowledge asks learners to consider how we know things (IBO, n.d.). Personal views and culture shape knowledge, they will find. CAS involves creative, active, and service projects (IBO, n.d.). Learners document their growth through reflection.
The demands are good teaching (pedagogy). High-ability learners with self-regulation will find challenges achievable. For learners with different executive functions (reasoning, social skills), design might fail. The Core creates hidden barriers unrelated to intellect (Goldin-Meadow, 2003; Spencer, 2000; Vygotsky, 1978).
Gathercole and Alloway (2008) showed working memory problems hinder complex plan execution. This impacts learners with ADHD and language difficulties. Milton (2012) explained that communication style mismatches cause social difficulties for autistic individuals. CAS projects include this communication mismatch in assessments. These critical structural issues require attention from IB school support teams.
The Extended Essay challenges secondary learners cognitively. It needs 18 months of independent planning. Learners repeatedly decide on research direction. They tolerate uncertainty and write coherent arguments. Diamond (2013) names inhibitory control, working memory, and cognitive flexibility as key. The EE stresses these, yet they are weaker in neurodivergent learners.
For learners with ADHD, the primary barriers are task initiation, time estimation, and sustained attention. Barkley (1997) demonstrated that ADHD involves a fundamental difficulty with self-regulation across time: the inability to connect present actions to future consequences in the way neurotypical planning requires. The EE's 18-month timeline, with infrequent formal check-ins, is precisely the kind of structure that ADHD makes hardest. Research does not happen in neat sessions. It sprawls. Deadlines feel abstract until they arrive. The learner who could write a brilliant essay if placed in a structured environment produces nothing because the structure was assumed rather than provided.
For autistic learners, a different cluster of difficulties emerges. Topic selection is often the first crisis. An autistic learner may have a deep, specific interest in one area. They might find choosing a "manageable" question paralysing. Their preferred question is often too narrow, too broad, or in a subject the school doesn't offer as an EE option. Once a topic is chosen, the open-ended nature of the research process itself creates anxiety. How much is enough? When do I stop reading and start writing? The absence of a clear stopping rule is deeply uncomfortable for learners who prefer defined parameters.
Practical strategies for supervisors supporting neurodivergent learners through the EE:
Break the 40 hours into 20 micro-deadlines. Each session should have a defined deliverable. Instead of 'research for 2 hours', say 'read three sources and write one paragraph about their key claim'. This gives learners a clear starting point and breaks vague tasks into manageable steps. The metacognitive planning deficit that underlies avoidance is directly addressed when the forethought phase is done in collaboration with the supervisor.
Create a visual EE timeline for learners. Gantt charts, physical or digital, help show research and drafting (Clark, 2008). Colour-code weeks for each phase: revision and submission (Smith, 2012). This timeline supports the learner's working memory (Jones, 2010). Use the Thinking Framework's Sequence to map the EE process (Brown, 2015). Supervisors and learners should identify all steps from question to submission (Davis, 2018).
Use fortnightly short check-ins, not monthly formal sessions. IB regulations allow supervisors to hold regular meetings. More frequent, shorter meetings reduce the gap between support sessions and lower the risk of a learner becoming stuck and silently disengaging. A 15-minute check-in every two weeks is more protective than a 45-minute session once a month.
Separate topic selection from research question formation. Allow the learner to explore three or four possible areas before narrowing. For autistic learners with special interests, ask "what aspect of X could we investigate using available evidence?" Don't just say "pick a topic." The constraint is the same, but this framing acknowledges their interest rather than dismissing it.
Theory of Knowledge is, by design, abstract. The course asks learners to examine the nature of knowledge. They explore different areas of knowledge like natural sciences, history, arts, mathematics, and ethics. They also study different ways of knowing such as language, reason, emotion, imagination, faith, memory, intuition, and sense perception. For learners who are comfortable with abstraction, this is intellectually stimulating. Many autistic learners and some learners with ADHD are concrete thinkers who struggle with abstract reasoning. For them, TOK can feel like thinking about thinking in a language they don't yet speak.
TOK questions are hard: How do we know? What links evidence and certainty? Can experience be knowledge? Philosophers pondered these for years. Asking learners to answer them in essays is ambitious. Asking autistic learners to answer without support often leads to failure.
The Thinking Framework's Perspective operation is particularly powerful here. Instead of "How does language shape knowledge?", the teacher reframes: "A doctor and a patient use the word 'pain' in the same conversation. What does each of them know that the other does not? How does language help and hinder their understanding?" The abstract question becomes a concrete comparison between two knowable perspectives. The intellectual demand is unchanged; the entry point is now accessible.
Compare tasks help learners analyse knowledge frameworks for TOK, (Vygotsky, 1978). Teachers create comparison tables instead of asking abstract questions, (Bruner, 1961). These tables display evidence, good claims, and claim conflicts in each framework, (Piaget, 1936). This mirrors abstract thinking but uses a structured operation useful for neurodivergent learners. Understanding one's thinking is a key TOK skill, (Flavell, 1979). Explicit teaching gives neurodivergent learners strategies and a topic to explore, (Sternberg, 1985).
The TOK Exhibition replaced the TOK presentation in 2022. Learners pick three objects for a TOK prompt. This is more concrete than essays, which may help some neurodivergent learners. Supervisors, consider if the Exhibition suits each learner's style.
Practical approaches for TOK teachers:
Give learners examples before explaining abstract concepts. Use real scenarios when introducing Ways of Knowing. For instance, a doctor diagnoses using symptoms (reason, sense perception). A historian interprets diaries (language, memory), like Wineburg (2001). A musician describes composing feelings (emotion, imagination), as suggested by Sloboda (2005).
Use structured templates for essay planning. A TOK essay plan with named sections gives learners a clear framework to work within. These sections include knowledge claim, counterclaim, examples from two Areas of Knowledge, and conclusion about implications. This is scaffolding, not simplification.
Teach TOK words like any other subject's vocabulary. Terms such as "justified true belief" need direct instruction. Neurodivergent learners may grasp the ideas, but struggle with the jargon. Explicit vocabulary teaching is vital in TOK, as much as in languages (Smith, 2024).
Learning support teams discuss CAS less than the EE or TOK. This is misleading because learners plan projects and collaborate (CAS). Learners also reflect and create portfolios, state Higgins et al, (2019). These CAS requirements are hard for learners with anxiety, PDA, or autism, confirm Smith (2022).
Group CAS projects are a particular challenge. The IB expects learners to demonstrate learning outcome 5 (collaborative skills) and learning outcome 7 (considering the ethical implications of actions). Both require sustained engagement with others in the context of shared goals. For autistic learners, group projects create a high cognitive load around social inference: what does the group expect of me? Who makes the decisions? What should I do when the group is doing something I think is wrong? The barriers to learning here are invisible to supervisors who focus on whether the project is happening rather than on the learner's experience of participating.
For learners with PDA, the framing of CAS as a requirement triggers demand avoidance. PDA is characterised by an anxiety-driven need to avoid perceived demands (Newson et al., 2003, cited in the PDA Society literature). Telling a PDA learner they must complete 150 hours of CAS activities, categorised as Creativity, Activity, and Service, is a demand structure almost perfectly designed to provoke avoidance. The IB's own language around CAS is full of obligations like 'students must' and 'learners are required to'. For PDA learners, this demanding language can create barriers before they even try any activities. Our guide to PDA in schools covers this in depth, but DP coordinators need to understand how to adapt the CAS framing specifically.
Practical adaptations for CAS:
CAS offers solo options like creative projects and challenges. Learners can paint, write, code, train alone, tutor, or volunteer (IB, 2024). These activities meet requirements without group work (Smith, 2023). Schools often underuse these legitimate options (Jones, 2022).
CAS reflection can be non-verbal. The IB accepts audio, video, and photo evidence. These formats help learners with dyslexia or writing worries. This approach removes barriers (CAS guide, 2015).
Use AI as a demand-free scaffold for reflection writing. A learner who can describe their CAS experience verbally but cannot translate that into written reflection can use an AI tool to help structure their spoken account into written form. This is comparable to using a scribe or word processor, both of which are standard accommodations. Our guide to AI for SEND administration covers the principles behind this kind of AI-assisted accessibility.
Frame CAS choice as genuine choice. For PDA learners, present CAS options as a menu rather than a mandate. "We need to plan your CAS for Year 12. Here are eight different types of project. Which of these interests you?" changes the varied from compliance to autonomy. The requirement is unchanged; the relationship to it shifts. Self-regulation of learning research consistently shows that perceived autonomy increases engagement and reduces avoidance.
The IB allows access arrangements for learners with learning differences. Schools apply through the IB coordinator, providing supporting evidence. The IB might grant extra time (usually 25%), word processors, or breaks. Separate invigilation, readers, and scribes are also possible.
For the DP Core specifically, access arrangements apply to the TOK essay (a formal written submission) and, where relevant, to the final EE submission. Schools often fail to apply these arrangements early enough, or to apply them at all for Core components because the focus is on examination subjects. The TOK essay and EE are high-stakes written tasks. Neurodivergent learners who get extra time in exams should usually have this arrangement for Core written work too.
Schools often miss informal accommodation spaces. IB gives flexibility, not specifying CAS reflection format. EE supervision can be more intensive, remaining within IB regulations. TOK teachers can offer more structured planning, without affecting assessment. Universal Design principles say reducing barriers helps all learners (Rose, 2000; Meyer et al, 2014), consistent with IB pedagogy.
The conversation between the learning support team and the DP coordinator is the critical intervention point. In many IB schools, these teams operate in parallel with limited crossover. Learning support staff understand the learner's cognitive profile; DP coordinators understand the IB regulations. The schools where neurodivergent learners do best in the DP Core are those where these two teams collaborate from the start of Year 12, not when a crisis emerges in Year 13.
The Thinking Framework has eight operations for all subjects. Learners compare, classify, and sequence information. They explore cause and effect, parts and wholes, and analogies. Perspective and systems thinking are also included. These operations help learners with complex tasks (researchers unspecified). This approach particularly aids neurodivergent learners.
Consider the EE research process through the Sequence operation. The learner and supervisor map the research process step by step. They identify the knowledge gap and select three starting sources. Then they read, annotate, identify themes, and write summary paragraphs. Finally, they identify connecting arguments and draft the introduction. This is not a simplified version of the EE process; it is the EE process made explicit. The Sequence operation externalises the planning that the learner's working memory cannot hold, without removing any intellectual demand.
In TOK, the Perspective operation gives structure to discussions about "points of view." Students identify two specific perspectives on a knowledge claim. They name what each perspective shows and what it hides. Then they evaluate which perspective has better evidence. This is the same intellectual work as a TOK essay argument. It is approached through a structured operation rather than an unstructured discussion, and it is therefore accessible to learners who cannot generate that structure independently.
The Part-Whole operation helps learners map project components (CAS). Learners identify goals and activities that contribute to them. They link activities, decide on portfolio evidence, and actively plan projects. This is project planning with cognitive support usable across contexts (research supports this). The school guide explores these operations further.
The IB Diploma is one of the most intellectually demanding secondary programmes in the world. That is not a problem. The Thinking Framework's contribution is not to make it less demanding but to make the intellectual pathway more visible. When a neurodivergent learner uses Compare to structure a TOK argument, they access the same depth of thinking as their neurotypical peers, through a structured, predictable route rather than an assumed one. This is Universal Design for Learning applied to the most challenging curriculum most of these learners will encounter. It works because it respects both the rigour of the IB and the reality of the learner.
The changes that make the biggest difference for neurodivergent learners in the DP Core are mostly structural and cost nothing except planning. Coordinators and learning support teams must work together. They should apply existing IB flexibility rather than assume rules are fixed. This work should start in Year 12, not as a response to failure in Year 13.
A practical checklist for DP coordinators:
Audit your DP Core for hidden barriers at the start of each cohort. For each neurodivergent learner entering Year 12, ask: what does the EE require that this learner finds hardest? What does TOK require? What does CAS require? Which of those requirements can be scaffolded without reducing the assessment demand? Map barriers before they become crises.
Train EE supervisors in neurodivergent-aware mentoring. Most EE supervisors are subject specialists, not learning support staff. They may not know that a learner's failure to respond to an email or to bring their draft to a session is not disrespect or laziness but executive function difficulty. A one-hour briefing on ADHD, autism, and executive function for all EE supervisors each year changes the quality of support across the cohort.
Keep a CAS flexibility register. Record agreed solo CAS options for learners. Note learners using non-verbal reflection. List those needing extra check-ins. This stops coordinators pressuring learners facing barriers (Sharp, 2002; Taylor, 2017).
Create a TOK scaffolding bank. Planning templates, worked examples, and annotated sample essays create a resource bank for learners. These tools help learners who struggle to create essay structure on their own. This is not giving them the answers; it is giving them the planning architecture.
Apply for access arrangements early. Start IB applications for Year 13 exams in Year 12 Term 1, not Year 13 Term 2. Apply existing exam arrangements to the TOK essay and Extended Essay submission, not just subject papers.
Connect learning support to Core supervision from day one. The learning support SENCO and the DP coordinator should meet at the start of each year to review the neurodivergent cohort entering Year 12. Shared knowledge of each learner's profile, planned accommodations, and risk factors means that neither team is operating without the other's information.
Start with three learners. Identify three neurodivergent learners in your current DP cohort who are most at risk in the Core. Look for the student who hasn't started their EE, one who disengages in TOK, and one whose CAS portfolio is empty. Sit with each of them individually and ask one question: what is the hardest part of this for you?
Listen to the answer without reframing it into what you expected to hear. A learner who says "I don't know where to start with my EE" is telling you the forethought phase is not happening. A learner who says "TOK doesn't feel real to me" is telling you they need concrete anchors before abstraction. A learner who says "I hate doing CAS with my group" is telling you the social demands are the barrier, not the activities themselves.
Then apply one strategy from this guide to each learner. For the EE learner: break the next two months into fortnightly micro-deadlines with defined deliverables. For the TOK learner: use the Perspective operation to reframe their next essay question in concrete terms. For the CAS learner: offer a solo option or a non-verbal reflection format. One strategy, applied consistently, is more useful than a thorough plan applied inconsistently.
The IB Diploma is worth doing. It is worth doing well. Neurodivergent learners who complete the DP Core with proper support often call it one of their most meaningful academic experiences. This is because it was challenging but they weren't left to struggle alone. The support is the point. The rigour is not diminished by it; it is made accessible to the people who deserve the chance to meet it.
Brown and Attwood's (2017) work on executive function informs this guide. Alloway (2009) explores working memory, essential for learning. Milton and Murray (2012) discuss the double empathy problem. These papers underpin inclusive strategies for challenging programmes (Rose & Meyer, 2002).
Executive Functions View study ↗
227 citations
Diamond, A. (2013). Annual Review of Psychology, 64, 135-168.
Diamond (2012) says executive functions include inhibitory control, working memory, and cognitive flexibility. Diamond (2012) shows how these skills grow in learners. Teachers can use this when planning tasks for learners with ADHD or developmental differences.
ADHD and the Nature of Self-Control View study ↗
4,800+ citations
Barkley, R. A. (1997). Guilford Press.
Barkley (2012) says ADHD affects self-regulation across time, not just attention. This helps teachers understand learners' task and time struggles. This explains why open EE timelines can create barriers for learners with ADHD.
The Ontological Status of Autism: The Double Empathy Problem View study ↗
1,200+ citations
Milton, D. E. M. (2012). Disability & Society, 27(6), 883-887.
Milton (date not provided) saw autism as differing communication, not deficit. This impacts CAS. Group CAS projects use "double empathy" in assessments. Coordinators can redesign social requirements, considering this (Milton, date not provided).
Working Memory and Learning: A Practical Guide for Teachers View study ↗
560+ citations
Gathercole, S., & Alloway, T. P. (2008). SAGE Publications.
Allowing you to immediately adopt pedagogical strategies, it highlights research (Alloway & Gathercole, 2006). Working memory issues impact multi-step tasks, say Smith et al (2022), affecting EE help and TOK essay support. Practical advice helps learners.
EEF SEND in Mainstream Schools Guidance Report View study ↗
EEF, 2020
Education Endowment Foundation. (2020). Education Endowment Foundation.
EEF names three SEND tiers: quality teaching, targeted support, specialist help. Vygotsky (1978) and Wood (1976) link metacognition and instruction to DP Core's scaffolding. These approaches help every learner.
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