Unit 10 Overview:

In this unit, students will apply their understanding of geometric attributes of shapes in order to create given shapes. For example, a student may roll a clump of play-doh into a sphere or use their finger to draw a triangle in the sand table, recalling various attributes in order to create that particular shape. Because two-dimensional shapes are flat and three-dimensional shapes are solid, students should draw two-dimensional shapes and build three-dimensional shapes. Shapes may be built using materials such as clay, toothpicks, marshmallows, gumdrops, straws, pipe cleaners, etc. In addition, students will move beyond identifying and classifying simple shapes to manipulating two or more shapes to create a new shape. This concept likely begins to develop as students first move, rotate, flip, and arrange puzzle pieces. Next, students use their experiences with puzzles to move given shapes to make a design (e.g., ―Use the 7 tangram pieces to make a fox). Finally, using these previous foundational experiences, students manipulate simple shapes to make a new shape.

• Students will describe objects in the environment using names of shapes and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind and next to. (K.G.A.1)
• Students will correctly name shapes regardless of their orientations or overall size. (K.G.A.2)
• Students will identify shapes as two-dimensional (lying in a plane, "flat") or three-dimensional ("solid"). (K.G.A.3)
• Students will analyze and compare two-dimensional and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/corners) and other attributes (e.g., having sides of equal length). (K.G.B.4)
• Students will model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing shapes. (K.G.B.5)
• Students will compose simple shapes to form larger shapes. For example, "Can you join these two triangles with full sided touching to make a rectangle?" (K.G.B.6)