The OECD has published the report “Unlocking High-Quality Teaching“, a synthesis of global insights from over 150 schools across 50 countries. The report distills what makes teaching truly effective in classrooms, but it also exposes a troubling truth: many education systems fall short in applying these proven practices. Despite decades of pedagogical research, implementation gaps persist, especially in under-resourced schools or rigid systems, where effective teaching is therefor often not present.

In this article we explain the five dimensions of high-quality teaching and explore why even the most advanced school systems often miss the mark.

5 Dimensions of Effective Teaching

1. Cognitive Engagement: Learning That Sticks

Effective teaching begins with activating student thinking. Cognitive engagement involves prompting learners to make connections, reason through problems, and reflect on their understanding. It goes beyond participation – it demands intellectual effort.

Yet, many classrooms default to passive instruction. According to the OECD, teachers frequently lack time, resources, or training to design cognitively rich lessons. Moreover, standardized testing regimes often push schools toward surface-level coverage of content, rather than deep learning.

Signals of cognitive engagement include students asking questions, reasoning aloud, and revisiting errors – behaviors rarely captured by conventional metrics.

Signals of Students’ Cognitive Engagement in Classrooms

DomainKnowledgeSkillsValues and Attitudes
Ensuring appropriate levels of challengeStudents demonstrate new knowledge that is well-reasoned with evidence.Students self-sustain their focus even in the face of setbacks.Students are engaged in their work and motivated to go beyond what they are expected to do.
Meaningful context and real-world connectionsStudents make detailed connections between their learning and the real world.Students consider the relevance of different contexts.Students seek purposeful applications of their learning.
First-hand experiencesStudents transfer ideas from experiences to abstract concepts.Students adapt experiences to focus learning.Students eagerly explore and try out different ideas.
Multiple approaches and representationsStudents articulate key ideas using different methods.Students justify when and how to use varied approaches.Students appreciate different ways of thinking.
MetacognitionStudents apply strategies to support progress.Students monitor and reflect on understanding.Students reflect on learning and act on it.

2. Quality Subject Content: Teaching the Right Stuff, the Right Way

Effective teaching relies on strong subject knowledge paired with pedagogical precision. The OECD report stresses the need for curricula that are both coherent and adaptable, enabling teachers to build conceptual understanding over time.

However, content delivery often skews toward rote memorization or fragmented topics. Teachers may struggle with unclear curriculum standards, insufficient planning time, or inadequate professional development.

The report emphasizes practices like sequencing content logically, integrating real-world applications, and scaffolding complex ideas. These methods require deliberate instructional design—something not all educators are trained or supported to do.

Signals for Whether Core Practices for Quality Subject Content Are Working in Classrooms

DomainKnowledgeSkillsValues and Attitudes
Crafting explanationsStudents understand rationale behind ideas.Students apply content to new contexts.Students ask deeper questions.
Clarity and coherenceStudents recall key info accurately.Students adapt learnings for new situations.Students show confidence in structured learning.
Making connectionsStudents link subject matter confidently.Students generalize from those links.Students are curious and explore ideas.
Nature of the subjectStudents grasp how knowledge is built.Students question processes like experts.Students feel they can contribute to the subject.

3. Social-Emotional Support: Teaching the Whole Child

Effective teaching also nurtures students’ emotional well-being and sense of belonging. The OECD identifies classroom safety, positive relationships, and emotional responsiveness as critical to learning.

Unfortunately, emotional support is often under-prioritized. Teachers face large class sizes, limited mental health resources, and pressure to meet academic benchmarks. Many lack training in trauma-informed pedagogy or social-emotional learning strategies.

Schools that excel in this domain implement systems for recognizing student distress, building trusting relationships, and cultivating a supportive classroom culture.

4. Classroom Interaction: Dialogues That Drive Learning

Interactive classrooms foster dialogue, collaboration, and reciprocal feedback. Students learn more when they co-construct knowledge through questioning, peer exchange, and exploratory discussion.

Still, OECD data show that teacher-student interactions often remain one-directional. Teachers may ask closed questions, limit student talk time, or discourage divergent thinking.

Improving classroom interaction demands a shift from teacher-centered to learner-centered approaches. It also requires culturally responsive communication and equitable participation protocols.

5. Formative Assessment and Feedback: Guiding Learning in Real Time

Formative assessment – checking for understanding during the learning process – is a linchpin of effective instruction. Feedback helps students adjust strategies, deepen comprehension, and stay motivated.

Despite its proven benefits, formative assessment is inconsistently applied. OECD findings reveal that many teachers lack tools, training, or time to conduct meaningful formative checks. Others rely on summative assessments that offer little instructional value.

High-quality feedback is timely, specific, and actionable. Systems that embed formative assessment into daily routines see stronger learning gains and student autonomy.

Why Most Schools Miss the Mark

The gap between theory and practice arises from systemic constraints. Key barriers to reach effective teaching include:

  • Limited teacher training in research-based practices
  • Overloaded curricula and emphasis on test scores
  • Underinvestment in school leadership and collaborative planning
  • Inequitable resource distribution, particularly in disadvantaged communities

The OECD calls for environments where teachers can reflect, collaborate, and experiment with evidence-informed strategies. Yet, many systems undervalue professional autonomy and ongoing development.

Effective Teaching Needs Sustained Investment, Structural Reform, and Cultural Change

Improving teaching – to reach highly effective teaching – isn’t about revolutionary tools or policies. It’s about supporting teachers to enact proven, complex practices every day. The five dimensions identified by the OECD offer a roadmap—but realizing them demands sustained investment, structural reform, and cultural change.

If systems want lasting gains in student learning, they must stop looking for silver bullets and start empowering teachers to refine their craft in all its depth.

I have a background in environmental science and journalism. For WINSS I write articles on climate change, circular economy, and green innovations. When I am not writing, I enjoy hiking in the Black Forest and experimenting with plant-based recipes.