# The Lesson Study Group

at Mills College

## Developing Number Sense of Fractions

If you are interested in exploring fractions, there are two resources available:An online course: Use an online step by step approach to conduct a Lesson Study cycle on fractions.A downloadable resource kit: The original resource kit used in the randomized controlled...

## Measuring Liquid Volume

Overview In this resource, we discuss the teaching and learning of measuring liquid volume. Specifically, we attend to how students’ understanding of liquid volume might progress through the four stages of measurement. This resource builds on our measurement overview,...

## Addition and Subtraction, Part 2: Initial Story Situations

Overview In this resource, we discuss the first situation types that students typically experience when introduced to addition and subtraction story problems in Kindergarten. Studying these situations allows teachers to see how students begin to understand the...

## Addition and Subtraction, Part 1: Story Problems

Overview In this resource, we discuss the teaching and learning of addition and subtraction. Often, students’ understanding of this topic is heavily grounded in rote computation of numbers, separated from any real-life context. Unfortunately, this can leave gaps in...

## Place Value: How to Assess Students’ Understanding

From Marilyn Burns Math Blog, January 18, 2016. Excerpt: If you’re familiar with Cooks Illustrated magazine, you know that they use their test kitchen to tinker with recipes and improve on them. In each issue, they report on all of the attempts they make and...