Students will learn how to compose 2D shapes involving more than two pieces. They'll also learn how to compose 3D shapes, as seen here. Read Grandfather Tangs Story, showing students how to construct each animal. After finishing the story, have each student pick a couple animals to construct. After doing so, let them make their own animals, if they wish. Do Illustrative Mathematics Make Your Own Puzzle activity. Also, give the puzzles found here, here, here, here, and here.
Idea for Grandfather Tang's Story comes from here.
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Conclude by leading this investigation:
1.G.A.2: Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.