unit-squares

Teaching 3rd graders to measure area by counting unit squares can be tricky — students often confuse area with perimeter or struggle to count systematically. This guide provides 5 concrete strategies with step-by-step instructions, plus differentiation tips and common misconceptions to watch for. You’ll get hands-on activities, real-world connections, and ready-to-use techniques that help students master CCSS.Math.Content.3.MD.C.6 with confidence.