Curriculum placement
Kindergarten. This describes the skill, not a learner estimate.
Composing shapes
Build and describe shapes using smaller shapes
Problem types
- Shapes put together
- Complete the shape
- Name the parts of a cut shape
Builds on
Leads to
- Shapes made by putting shapes together
- Halves and quarters of a whole
- Sides, angles, and faces · Extend the idea
A shape built from smaller shapes is itself a polygon whose sides and angles can be counted and named.
- Area of triangles and other polygons · See it applied
Cutting a polygon into rectangles and triangles uses the same decomposing idea as taking a shape apart into smaller shapes.
- Area and volume of composite figures · Extend the idea
Putting simple shapes together to build a bigger one is reversed when a composite figure is split into simple shapes to find its area.
Related skills
- Comparing length, weight, and capacity · Related idea
Composing a shape from pieces needs edges that match in length, which is a comparison of an attribute.
- Classifying quadrilaterals · Related idea
Putting two triangles together along a side makes a quadrilateral, and which quadrilateral depends on the triangles.
- Building and drawing closed shapes · Shared foundations
- Defining attributes of shapes · Shared foundations
Open the interactive map to explore lessons and skill connections.