This Japanese teacher has had the class work on a series of questions. He calls on different students to speak out their methods to the class, offering encouragement and asking clarifying questions when need be. The questions the students have solved are all carefully linked together and increasing in challenge. The teacher highlights the similarities and difference between questions and the methods students adopt to solve them. In particular, he draws connections with a visual representation of the problem.

This is an urban, public school. Watch out for how the teacher:
- Pushes students to give their answers as accurately as possible

- Refers back to previous questions

- Emphasises the connection with an earlier visual representation

How do you use patterns and generalisations in your own classroom?