Mistakes and misunderstandings can be rich opportunities to learn, and in this Mexican classroom the teacher shows how to embrace them. The students are working on forming, factorising and solving quadratic equations. When students encounter a recurring problem, the teacher has a student model step-by-step the correct approach which exposes the previous error. Meanwhile, the teacher is warm but firm with students, managing disruptions quickly and subtly, while keeping an energetic classroom atmosphere.

This is an urban, public school. Watch out for how the teacher:
- Guides students with hints and questions

- Reacts positively to mistakes and struggles

- Illustrates misconceptions to the class

How do you support understanding of procedures and processes in your own classroom?