Maryland College and Career-Ready Standards
MD.MA.3.MD. Measurement and Data (MD)
3.MD.C. Geometric measurement: understand concepts of area and relate area to multiplication and to addition.
3.MD.C.6. Major Standard: Measure areas by counting unit squares (square cm, square m, square in., square ft., and improvised units).
3.MD.C.6.1. Ability to use manipulatives and visual models to calculate area.