# Clip 1/29: Day 1: Decimal Pre-Lesson Part A

## Overview

Erika Isomura discusses her plans for her teaching with her friend, colleague, and math coach [Mia Buljan](http://www.insidemathematics.org/common-core-resources/mentors-of-mathe…). Erika describes what her students were doing as mathematicians in general before the documented lesson segment.