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Shape Architects

Go on a shape hunt! Find circles, squares, triangles, and rectangles in your home. Build with shapes using blocks and paper cutouts.

Hands OnAbout 25 minutesScreen-freeParent preview recommended

Materials and setup

How this changes by age

Pre-K (ages 3–4)

Go on a shape hunt! Find circles, squares, triangles, and rectangles in your home. Build with shapes using blocks and paper cutouts.

Difficulty 1 of 3

Steps

  1. Review 4 basic shapes: circle, square, triangle, rectangle. Trace each with your finger.
  2. Go on a shape hunt around the house. Can you find 2 of each shape?
  3. Sort shape cutouts by type. Count the sides and corners of each.
  4. Build a picture using only shapes (a house from a triangle and square, a tree from a circle and rectangle).
  5. Name each shape in your picture as you point to it.
  6. Tell a grown-up one thing that surprised you.

Learning objectives

  • Identify circles, squares, triangles, and rectangles in the environment
  • Describe shapes by number of sides and corners
  • Compose larger shapes from smaller shapes

Kindergarten (ages 5–6)

Explore 2D and 3D shapes. Compare shapes by attributes, build 3D shapes from nets, and find shapes in architecture.

Difficulty 2 of 3

Steps

  1. Learn 3D shapes: sphere, cube, cylinder, cone, rectangular prism. Find real examples of each.
  2. Compare 2D and 3D shapes: a square is flat, a cube is solid. What shapes do you see on a cube's faces?
  3. Sort 10 shapes by attributes: number of sides, curved or straight edges.
  4. Build a 3D shape from paper: fold a cube net and tape it together.
  5. Draw a building using at least 5 different shapes. Label each shape.
  6. Tell a grown-up one thing that surprised you.

Learning objectives

  • Identify and name common 3D shapes
  • Compare 2D and 3D shapes by their attributes
  • Construct 3D shapes from 2D nets

Early elementary (ages 6–8)

Classify shapes by properties: parallel sides, right angles, symmetry. Calculate perimeter and area of rectangles. Explore coordinate grids.

Difficulty 2 of 3

Steps

  1. Classify quadrilaterals: square, rectangle, rhombus, parallelogram, trapezoid. What properties does each have?
  2. Identify lines of symmetry in 10 shapes. Draw the line(s) of symmetry for each.
  3. Calculate the perimeter of 5 rectangles by adding all sides.
  4. Calculate the area of 5 rectangles using length x width. Use square units.
  5. Plot 6 points on a coordinate grid and connect them to form a shape. Name the shape.
  6. Design a floor plan for a dream room using graph paper. Calculate the area of each section.
  7. In one sentence, tell a parent or sibling what surprised you today.

Learning objectives

  • Classify shapes by geometric properties
  • Calculate perimeter and area of rectangles
  • Plot points on a coordinate grid to form shapes

Upper elementary (ages 8–10)

Apply advanced geometry: area of triangles and complex shapes, volume of rectangular prisms, angle measurement, and transformations (slides, flips, turns).

Difficulty 3 of 3

Steps

  1. Calculate the area of 5 triangles using base x height / 2.
  2. Find the area of 3 composite shapes by decomposing them into rectangles and triangles.
  3. Calculate the volume of 5 rectangular prisms using length x width x height.
  4. Measure and classify angles as acute, right, obtuse, or straight using a protractor.
  5. Perform transformations: draw a shape, then show its translation, reflection, and rotation on a grid.
  6. Design a 3D building using rectangular prisms. Calculate its total volume and surface area.
  7. In one sentence, tell a parent or sibling what surprised you today.

Learning objectives

  • Calculate area of triangles and composite shapes
  • Calculate volume of rectangular prisms
  • Perform and identify geometric transformations

Safety and evidence note

Read the full activity before beginning. An adult should supervise tools, heat, food, outdoor work, movement, and experiments as appropriate. Completion records that the activity was done; the child’s explanation, work sample, photo, or demonstration is stronger evidence of learning than a completion check alone.

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