This Japanese teacher offers an example of how to use a visual representation whilst explaining a new method. The teacher uses the visual as a prompt for students to approach solving quadratic equations in a different way, adjusting the drawing when necessary. The representation is coupled with careful questioning that guides the students through the method step-by-step.

This is an urban, public school. Watch out for how the teacher:
- Gives visual demonstrations

- Guides students through a new method with careful hints

- Asks questions that probe students' level of understanding

How do you use different types of representation in your own classroom?