How Many Rectangles?

Students use rectangle side lengths to identify factor pairs for a given whole number area.

By Amplify Classroom

Grades: 4th Grade

Subject: Math

Learning goals: Today’s Goals • Determine all the factor pairs for a given number in the range `1`–`100`. • Language Goal: Explain how you know when you have found all the possible factor pairs for a given number. (Speaking and Listening) Materials Lesson Resources: Centimeter Grid Paper PDF; Manipulative Kit: inch tiles; Classroom materials: folders; Centers Resources: Area Cards