Forest gate031

Educational research

CST EDI lesson framework

At CST, we have defined what excellent teaching looks like and the behaviours required to achieve it, in our Explicit Direct Instruction (EDI) lesson framework; an evidence-informed compilation of best teaching practices.

The Playbook

Effective feedback is the golden thread that runs through our professional development. To ensure we get this right, we base all our feedback on our CST EDI lesson framework and its accompanying ‘playbook’ that breaks down the components of our EDI framework and provides a play-by-play narration of what it entails. It is our ‘repertoire of effective practices’ and ensures a base of clarity and quality from which we can springboard any feedback we provide. Every teacher in the school owns this playbook and professional conversations around classroom practice all centre around our playbook.


'Every teacher needs to improve, not because they are not good enough, but because they can be even better.'

Dylan Wiliam