Evidence-based professional development for teachers. Coaching, mentoring, lesson study, reflective practice, and the ECF. Updated for 2026.
Effective continuing professional development changes classroom practice. But not all CPD is equal. Timperley et al. (2007) conducted a large-scale synthesis of teacher professional learning and found that CPD produces consistent gains in learner outcomes when it is sustained over time, involves active learning rather than passive reception, focuses on subject-specific pedagogy, is collaborative, and uses evidence to examine practice. One-off training days that deliver information without follow-up rarely shift what teachers do in classrooms. The research is unambiguous on this point.
The Early Career Framework (ECF), introduced in England in 2021, is the most significant structural change to early teacher professional development in a generation. It provides two years of structured CPD for early career teachers, drawing on Rosenshine's principles, cognitive load theory, and behaviour research to define what new teachers should know and be able to do. For experienced teachers, lesson study, instructional coaching, and collaborative inquiry offer the most evidence-based routes to developing practice. Hattie (2009) found an effect size of 0.62 for professional development that focuses on the impact of teaching on learner learning.
Start with Reflective Practice for Teachers for the foundation, then follow the pathway below.
| Model | How It Works | Best For | Evidence |
|---|---|---|---|
| Instructional Coaching | A trained coach observes teaching and holds structured feedback conversations focused on specific, practised techniques. | Developing specific classroom skills. Works across experience levels when the coach is skilled in non-judgemental feedback. | Strong. Kraft et al. (2018) meta-analysis: d = 0.49 for instructional coaching on practice. |
| Lesson Study | Small teams of teachers collaboratively plan, observe, and review a "research lesson" with a focus on how specific learners learn. | Building shared subject-specific pedagogical knowledge. Particularly effective in mathematics and science departments. | Moderate to strong. EEF (2021) reports evidence for improving teaching quality through structured collaborative inquiry. |
| Action Research | Teachers identify a question about their own practice, collect classroom evidence, implement a change, and evaluate its impact. | Experienced teachers seeking greater autonomy over their own development. Builds an inquiry habit of mind. | Moderate. Most effective when teachers have support to collect and interpret evidence rigorously (McLaughlin and Black-Hawkins, 2004). |
| ECF Structured Induction | Two-year programme for early career teachers combining weekly mentor meetings, half-termly training events, and structured self-study. | NQTs and ECTs in their first two years. Provides a research-grounded foundation across behaviour, pedagogy, curriculum, and assessment. | Early evidence positive. NFER (2022) found ECF improved ECT retention and confidence compared with previous induction arrangements. |
The foundation. Understand Schön's reflective practitioner, Gibbs' cycle, and the difference between reflection-on-action and reflection-in-action.
Move from personal reflection to structured collaboration. Use mentoring conversations and classroom inquiry to accelerate your development.
Build sustainable structures for your school or department. Turn lesson observation from a performance event into a genuine learning tool.
Timperley et al. (2007) identified five features of CPD that produce consistent gains in learner outcomes. First, it must be sustained over time: at least 35 hours of contact time, spread across a term or year, rather than a single full-day event. Second, it must involve active learning: teachers practising, trialling, and discussing rather than passively listening. Third, it must focus on subject-specific pedagogy: general teaching tips are less effective than strategies directly applicable to what teachers are actually teaching. Fourth, it must be collaborative: shared inquiry with colleagues is more powerful than individual study. Fifth, it must use evidence to examine the impact on learners: teachers need to see whether what they are doing is working. One-off INSET days that tick none of these boxes account for a significant proportion of CPD spending in schools despite producing very little return.
The Early Career Framework (ECF) is a statutory entitlement introduced in England in September 2021 for all teachers in their first two years of teaching. It replaces the previous one-year induction and provides a structured programme of professional development drawing on evidence from cognitive science, behaviour management research, and curriculum theory. The ECF is organised around five standards: behaviour and attitudes, teaching, adapting teaching, assessment, and professional behaviours. Early career teachers receive a reduced timetable, weekly mentor meetings with a trained mentor, and half-termly training events. NFER (2022) early evaluation found that ECT confidence and retention improved compared with previous induction arrangements, though longer-term impact data is still emerging.
Mentoring and coaching are often used interchangeably but they describe distinct relationships. A mentor is typically more experienced in the same field and draws on that experience to offer guidance, advice, and modelling. The relationship is often hierarchical: the mentor knows things the mentee does not yet know. Coaching, in contrast, is typically non-directive: a coach does not need to be an expert in the coachee's subject. A coach uses structured questions to help a practitioner identify what they already know, articulate what they want to change, and generate their own solutions. In education, instructional coaching blends both approaches: the coach does observe lessons and offer specific, evidence-informed feedback on teaching, but the dialogue remains fundamentally about the teacher's own thinking rather than the coach's prescriptions. Kraft et al. (2018) found instructional coaching produced effect sizes of 0.49 on teaching quality, making it one of the strongest CPD investments available.
Lesson study is a Japanese model of professional development in which small teams of teachers collaboratively plan, observe, and review a "research lesson" focused on how specific case learners learn. Unlike conventional lesson observation, the focus is not on evaluating the teacher: it is on understanding how learners respond to a planned learning sequence. The team agrees on a research question (for example, "how do our case learners respond when we use ratio tables before the algorithm?"), one teacher teaches while the others observe specific learners, then the team discusses what they saw and what it implies for the next lesson. Lewis et al. (2006) argued that lesson study builds the kind of knowledge that is rarely developed through individual study: shared understanding of how learners think about specific content in a specific subject.
Gibbs (1988) proposed a six-stage cycle for reflecting on professional experience. The stages are: description (what happened?), feelings (what were you thinking and feeling?), evaluation (what was good or bad about the experience?), analysis (what sense can you make of the situation?), conclusion (what else could you have done?), and action plan (if it arose again, what would you do?). The cycle is most useful when used systematically after a lesson that did not go as expected, rather than as a general journaling tool. The key is the analysis stage: this is where you connect what happened to what you know about learning, pedagogy, and your learners. Descriptive reflection without analytical depth is of limited value. Teachers who use the cycle regularly over a term report it helps them notice patterns in their practice they would otherwise miss.
Professional learning communities (PLCs) are groups of teachers who meet regularly to share practice, examine evidence about learner learning, and collaboratively develop their teaching. DuFour and Eaker (1998) identified the defining features of an effective PLC: a shared mission focused on learning, a collaborative culture, collective inquiry into best practice, an action orientation (trying things, not just discussing them), a commitment to continuous improvement, and attention to results. Not all staff meetings are PLCs. The distinction is in the focus: a meeting that discusses behaviour policies is not a PLC; a meeting where teachers examine work samples to ask "are our learners learning what we intended?" is. Stoll et al. (2006) found that PLCs in schools are associated with improved learner achievement, particularly when they are sustained over time and focused on subject-specific pedagogical questions.
Evidence-informed teaching does not mean reading every research paper published: it means being systematic about connecting what you do to what is known to work. Three habits build this over time. First, read selectively: the Education Endowment Foundation toolkit, ResearchEd publications, and Willingham's "Why Don't Students Like School?" give a reliable base without requiring deep expertise in research methods. Second, trial deliberately: choose one strategy from the research, implement it consistently for at least a half-term, and use learner work and assessments to evaluate its impact rather than relying on impression. Third, discuss regularly: talking with colleagues about what you tried and what the evidence from your classroom showed is more generative than any amount of individual reading. Coe et al. (2014) argued that teacher expertise develops most rapidly when practitioners are exposed to challenging tasks, receive feedback, and have opportunities to reflect. The evidence-informed habit creates exactly these conditions.
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About this hub. Articles are written by practising educators and reviewed against peer-reviewed research. Citations follow author-date format. New content added regularly. Get in touch if you cannot find what you need.
Start with the most-comprehensive guide in the list below. Look for titles that say A Teachers Guide those are flagship deep-dives. They link out to all the related concepts.
Every article cites peer-reviewed research and translates findings into classroom practice. Where research is contested, we say so. Where the evidence is strong, we explain why and what to do.
Each guide ends with practical next-lesson actions. You can also use our AI lesson planning tools which generate full lesson plans grounded in these methods.