Organizing Art Supplies

Students represent an array situation by writing an equation with a symbol for the unknown value. Note: The Show What You Know screens, PDF, and Answer Key PDF were updated on 1/12/2026.

By Amplify Classroom

Grades: 3rd Grade

Subject: Math

Learning goals: Today’s Goals • Write equations with a symbol for the unknown number to represent array story problems with unknown factors. • Language Goal: Solve story problems involving multiplication and explain strategies used. (Speaking and Listening) Materials Manipulative Kit: connecting cubes or counters (optional); Classroom materials: Ways to Represent Multiplication chart (from prior lessons)