Standard
    
    
        - CCSS.Math.Content.K.G
- Geometry
    
   
    
    
        - CCSS.Math.Content.K.G.B
- Analyze, compare, create, and compose shapes.
    
   
    
    
        - CCSS.Math.Content.K.G.B.6
- Compose simple shapes to form larger shapes. For example, ''Can you join these two triangles with full sides touching to make a rectangle?''