Objective
Students analyze the similarities and differences of several quadrilaterals.
This video focuses on the idea of flexibly grouping four-sided shapes rather than memorizing definitions and names. We begin by noting how living things can be grouped in many ways (a hawk and a falcon go together, but so could a hawk and a pine tree - if we loosen up our requirements).
Steps
- Students note that living things, as well as quadrilaterals, can be grouped in a variety of different sized categories. They consider how one quadrilateral is similar to and different from two others.
- Students learn several criteria for grouping quadrilaterals (right angles, parallel sides, and congruent sides), then revisit their worksheet to increase their level of precision.
- Students develop a hierarchy using the criteria from the previous video.
Resources
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