According to NCTM Principles and Standards for School Mathematics,
students in grades 3-5 should be able to investigate, describe, and reason about
the results of subdividing, combining, and transforming shapes. In this activity
students practice these skills and use 4 adjacent right triangles to create
as many different polygons as possible.
Students attempt to earn more points than an opponent by coloring in more four-piece
polygons on the game board.
- Playing grid
- Two different colors of pens, markers, or pencils.
- First player colors in any single small triangle of the playing grid.
- Second player then colors in any other small triangle of the grid.
- Players then alternate turns coloring in small triangles and may play anywhere
on the grid.
- The game ends when the grid is completely colored.
- Points are awarded for the following shapes, each made up of four triangles:
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