standard_description: Represent addition and subtraction with objects, fingers, mental images, drawings (Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)), sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
problem_activity: Task
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Say what a trapezoid is in your own words. Compare your definition with a partner.
Is this parallelogram a trapezoid according to your definition? Explain.
[IMG]


aligns: no