Geometric Measurement
Unit counting becomes formulas, composite measurement, angle reasoning, volume, and surface readiness.
01Perimeter and area entry
Count units and distinguish boundary from region.
02Rectangles and composites
Use arrays, formulas, and decomposition.
03Volume
Pack cubes, count cubic units, use formulas, and decompose solids.
04Angles
Identify, compare, measure, draw, and compose angle measures.
05Related branches
Related skills that connect through the same family.