Proportional Reasoning

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Presentation transcript:

Proportional Reasoning

Recognizing pieces Whole to part Part to whole Conservation of area Tangrams Recognizing pieces Whole to part Part to whole Conservation of area

Tangrams Recognizing pieces 1 whole square or large square composed of 7 pieces 2 large triangles 2 small triangles 1 medium triangle 1 small square 1 parallelogram

Tangrams Whole to part If the whole tangram has an area of 36 units2, what is the area of the parallelogram?

Tangrams Part to whole If the parallelogram and a small triangle have an area of 3/8 units2, what is the area of the whole large square?