In this easy 1st grade geometry lesson, we study these basic shapes: circles, triangles, squares, and quadrilateral. The emphasis is on how many sides/corners they each have. We also study the meaning of the difficult word "quadrilateral" as a four-sided shape.
Then, we divide existing shapes into new ones and check what we get.
Check out also my other 1st grade videos at http://www.mathmammoth.com/videos/grade_1/1st-grade-math-videos.php
Tagged under: 1st grade,math,geometry,shapes,basic shapes,quadrilateral,triangle,square,-sided shape
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