Evaluating through Research Lessons

Research Lessons are special student centered lessons developed by a team of teachers as part of a Lesson Study Protocol. The students often work in groups an activity sheet as part of such a research lesson. These activity sheets often show us places that students have difficulties and bottlenecks as well as instructor blind spots.

Student difficulty spot revealed during a Lesson Study on "Discovering the Arc Length Formula"

This difficulty was completely unexpected and caught the designing team by surprise . The team thought that students will have difficulty getting started on the arc length formula set up. But where they really had the difficulty was in a factoring step. Click on the image below.