# The Lesson Study Group

at Mills College

## Calculation of Three Numbers

Description This unit plan outlines a first grade lesson designed to support students as they explore how to add or subtract three numbers. The document outlines the background and research on the content and standards, unit/lesson goals, and unit/lesson plan....

## Pick-Up Sticks Game: Making Tens

Description Two videos feature kindergarten lessons designed to support students in efficiently counting numbers by “making tens.” In the first video, students share different ways of counting sticks and the efficiency of “making tens” is surfaced. In the second...

## Let’s Investigate Numbers Greater than 1,000

Description This video features a second grade lesson designed to support students as they explore how to count, name, and write a number greater than 1,000 (specifically, 2,354). Students share different strategies and engage in a classroom discussion that surfaces...

## To Open a Cube: A Math Research Lesson on Problem-Solving & Geometry

Description This video features highlights from a fifth grade lesson designed to support students as they explore the properties of a geometrical shape (cube) by identifying the number of edges one needs to cut to open it completely. Students share different...

## Can We Turn 7/3 into a Mixed Number?

Description This video features a fourth grade lesson designed to support students as they explore the relationship between improper fractions and mixed numbers. Students share different strategies and engage in a classroom discussion that surfaces the importance of...