What are the test and learn interventions?

What is Lesson Study?

Lesson Study is a Japanese model of teacher-led research in which a triad of teachers work together to target an identified area for development in their students' learning. Using existing evidence, participants collaboratively research, plan, teach and observe a series of lessons, using ongoing discussion, reflection and expert input to track and refine their interventions.

The Japanese Lesson Study model has been advocated in the UK for some time both by the National College for Teaching and Leadership and its predecessor organisations.

The outline of the approach is as follows:

What is the evidence?

Evidence from the use of Lesson Study by hundreds of leading teachers working with 'coasting schools' who used Lesson Study as a coaching approach to improve pupil progress in writing and mathematics at age 11 showed considerable impact year on year (Dudley, 2012). Evidence was also found in the independent evaluation of this National Strategy Programme (Hadfield et al., 2011).

A large scale study under review at the time of writing in the US suggests LS has a significant impact on pupil learning as a result of teacher learning. Professor Pete Dudley's pilot project demonstrated a positive impact on pupil learning and this was directly linked with related teacher learning in a later study (Dudley, 2013).

A CfBT paper noted the value of Lesson Study in enhancing the teaching of mathematics (Burghes et al 2009)

A US paper showing Lesson Study improves teaching quality (Lewis et al 2012)


Dudley, P., (2012) Lesson Study in England: from school networks to national policy. International Journal for Lesson and Learning Studies, Vol 1, 1. January 2012, Emerald, London
Dudley. P. and Gowing, E., (2012) Reflection though Lesson Study in Hansen (Ed.) Reflective Learning and Teaching in Primary Schools, London, Sage

And a few more resources:

The Future:

From our work with NTEN, we are looking to offer a lesson study programme so please keep an eye on the 'Courses on Offer' page.


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