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

Shapes in the real world

What this lesson shows

A castle tower is a cylinder and a cone. An ice cream cone is a triangle and a semicircle.

The worked example

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

The steps

  1. Look at each part
  2. Name its shape
  3. Things are made of shapes

Helping at home

Point to an object and name each part's shape: the body, the top, the base. Most things are made of more than one shape.

If your kid gets stuck

What shape is each part?

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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