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Geometric measurement: understand concepts of angle and measure angles.


4.MD.C.5 Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint,...
4.MD.C.6 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
4.MD.C.7 Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the...