How Many Factors?

Students use rectangles to determine whether a number is prime or composite.

By Amplify Classroom

Grades: 4th Grade

Subject: Math

Learning goals: Today’s Goals • Identify the numbers in the range `1`– `100` as prime or composite. • Determine the factor pairs for a given whole number in the range `1`–`100`. Materials Lesson Resources: Centimeter Grid Paper PDF (optional); Manipulative Kit: inch tiles (optional)