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Area, Unit Squares, and Rectangular Arrays

3rd Grade · Math · Open Global Math

6 lessons

Goal

Understand area as surface coverage using unit squares, relate rectangular area to multiplication, and apply the distributive property.

6 lessons
0 of 6 done
  1. Understanding Area as Surface Covering Without GapsUp next
  2. Measuring Area with Standard Square Units: cm², dm², m², in², and ft²Not started yet
  3. Finding Area by Tiling and Counting Unit SquaresNot started yet
  4. Relating Rectangular Area to Multiplication: Rows and ColumnsNot started yet
  5. Applying the Area Formula: Length Times WidthNot started yet
  6. Solving Area Problems by Breaking ApartYou are here
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Learning standards covered

GlobalOGM.4.MD.5Open Global Math Standards 2026™ · 3rd Grade

Understand area as the measure of plane surface coverage using unit squares without gaps or overlaps (cm², dm², m², in², ft²); determine area by tiling and relate rectangular area to multiplication (rows × columns) and the distributive property.