Shapes in the World— Let's Practise!

Shapes in the World— Let's Practise! exercise

• What shape is the object?

  Hints

  Is it a 2D shape, or a 3D shape?

  Have a look at this table to help you with the shapes in this question.

  Circles and cylinders have round edges whereas cubes and rectangles have straight edges.

  Solution

  • The frame is a rectangle.
  • The dice is a cube.
  • The clock face is a circle.
  • The tin is a cylinder.

• Can you find the shapes?

  Hints

  Look at the 2D shapes listed:

  • square
  • oval
  • hexagon

  How many sides do they have?

  What are the properties of a cuboid and a cone?

  This ice-cream cone is a cone. This building block is a cuboid.

  Solution

  • The window is a square.
  • The mirror is a hexagon.
  • The hat is a cone.
  • The box is a cuboid.
  • The photo frame is an oval.

• Does the object match the shape?

  Hints

  Compare the shapes carefully. Are they both 2D or 3D?

  For example, the Post-it note is a square, not a circle, so if we were comparing these shapes we would write, no.

  Solution

  • Triangle and desert pyramid : no. The desert pyramid is a pyramid, not a triangle. A pyramid is a 3D shape and a triangle is a 2D shape.
  • Octagon and plate : yes. The plate is an octagon shape.
  • Sphere and tennis ball : yes. The tennis ball is a sphere.
  • Square and brick : no. The brick is a cuboid, not a square. A cuboid is a 3D shape and a square is a 2D shape.

• What shape are these objects?

  Hints

  Think about the properties of the shapes listed. Do any match the shape of the objects?

  This shape is a cuboid. Which object looks most like it?

  Solution

  • The notice board is a rectangle shape. A rectangle is a 2D shape.
  • The rolling pin is a cylinder. A cylinder is a 3D shape.
  • The sponge is a cuboid. A cuboid is a 3D shape.
  • The rug is a circle shape. A circle is a 2D shape.

• Which objects match the shape?

  Hints

  The shape at the top has 3 sides and 3 corners or vertices. Which shapes have 3 sides and 3 vertices?

  Triangles can face in different directions and still be triangles.

  Look at the shape of the flag, not the post.

  Solution

  The pizza slice, the flag and the road sign are all triangular-shaped.

  A triangle is a 2D shape. A triangle has 3 sides and 3 vertices.

• Which shapes can you see in the picture?

  Hints

  Here is a word bank to help you:

  • cylinder
  • rectangle
  • cuboid
  • triangle
  • octagon
  • sphere

  Here is a cylinder. Which object looks most like it?

  Solution

  • The glue stick is a cylinder. A cylinder is a 3D shape.
  • The football toy is a sphere. A sphere is a 3D shape.
  • The keyring tag is an octagon. An octagon is a 2D shape.
  • The postcard is a rectangle. A rectangle is a 2D shape.
  • The box is a cuboid. A cuboid is a 3D shape.
  • The sticker is a triangle. A triangle is a 2D shape.