# The Lesson Study Group

at Mills College

## Interpreting the Remainder in Division

Description This video features a fourth grade lesson designed to support students as they explore interpreting the remainder in division. Students share different strategies and engage in a classroom discussion that surfaces the importance of the story context for...

## How to Subtract Fractions with Unlike Denominators

Description This video features a fifth grade lesson designed to support students as they explore subtracting fractions with unlike denominators (2/3 – 1/2). Students share different strategies and engage in a classroom discussion that surfaces the importance of using...

## How to Divide a Fraction by a Whole Number

Description This video features a fifth grade lesson designed to support students as they explore dividing a fraction by a whole number (1/2 ÷ 4). Students share different strategies and engage in a classroom discussion that surfaces the importance of decomposing the...

## Can You Find the Area? Three Mathematics Research Lessons

Description: This video provides highlights from three fourth-grade lessons designed to support students as they discover formulas for the area of parallelograms, triangles, and trapezoids. Students share different strategies and engage in classroom discussions,...

## Compare 5/10 and 1/2

Description This video features a third grade lesson designed to support students as they compare (equivalent) fractions (5/10 and 1/2). Students share different strategies and engage in a classroom discussion, surfacing that different fractions can represent the same...