We have begun our geometry unit. On Monday students took a pre-test (these will be sent home soon, I just need to record the scores) and learned a new workplace game called: Last Shape in Wins. This is a strategy game that involves placing different polygons on a game board. On Tuesday we read The Greedy Triangle which introduced us to many different polygons. We learned that a triangle has 3 sides and angles, a quadrilateral has 4 sides and 4 angles, a pentagon has 5 sides and 5 angles, and so on (all the way up to an octagon!). We then used the geoboards to practice making different triangles. Not all triangles look the same! On Thursday we will learn the terms for different types of triangles (Isosceles, Equilateral, Scalene, and right). Today we used the geoboards to make different quadrilaterals. A quadrilateral is a polygon with 4 sides and 4 angles. And just like with triangles, not all polygons look the same! There are trapezoids, rhombuses, squares, rectangles, etc.!
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