# Part 3: Reflecting on what makes an explanation convincing

## Session 2-3: Reflecting on what makes an explanation convincing

**Overview**

This part provides an opportunity to reflect on key mathematical ideas and practices that were a part of the discussion in part 2.

It includes noticing:

- features of explanations that support understanding
- features and functions of different methods of recording
- the use of language, representations, and logic in the explanations

**Key points**

Reflection on a mathematics discussion can surface key mathematical ideas and practices that were used, but were not the focus of the discussion. This reflection supports the development of more general and routinely useable insights into the teaching and learning of mathematical ideas and practices.