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1st grade math · Unit 8: Shapes, halves, and fourths

Shapes from shapes

What this lesson shows

Six triangles make a hexagon, two trapezoids make a hexagon, two squares make a rectangle.

The worked example

The lesson works this one step by step: hexagon (question 1). Then your kid tries one like it on paper.

The steps

  1. Fit small shapes together
  2. Make a bigger shape
  3. Find another way

Helping at home

Use pattern blocks or paper shapes. Fit small shapes edge to edge to make a bigger one, then try another way.

If your kid gets stuck

Fit them edge to edge.

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

Standards

  • Common Core 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.
Matches standards in 49 statesSee each state's code

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