Step-by-step Maths Level 1: Solid shapes
Part of the Step-by-step Maths Level 1 shapes chapter. Chapter overview · whole chapter on one page
Solid shapes
Solid shapes are called 3-D shapes. They have depth as well as width and height.
A cube has six square faces. A cuboid is a box with flat faces. A sphere is round like a ball. A cone has a flat round base and a point.
Key ideas
- A cube has six square faces.
- A cuboid is a box shape.
- A sphere is round and has no flat faces.
- A cone has a point and a round base.
Method. Look at the shape. Is it round all over?
- Look at the shape. It is round all over, like a ball.round all over
- Check the faces. It has no flat faces.no flat faces
- Write the name. sphere
Check. A sphere can roll in any direction.
Watch out. A sphere is round all over.
Method. Look for the point and the base.
- Look for the point. It comes to a point at the top.a point
- Look at the bottom. It has a flat round base.round base
- Write the name. cone
Check. A cone has one point and one round base.
Watch out. A cone has one point. A cube does not.
Method. Look at the faces.
- Look at the faces. The faces are square.square faces
- Count the faces. It has six square faces.6
- Write the name. cube
Check. Six square faces are a cube.
Watch out. A cube has faces that are all the same size.
Watch out
Watch out. A cuboid can look like a cube. In a cuboid, some faces are longer than others.
Exam tip
Grown-up tip. Use boxes, balls and cones from around the house. Ask: “Which can roll?” and “Which has a point?”
Exercise 10C Solid shapes
Non-calculatorMethod. Look at the picture. Think about the faces and the points.
- Look at the shape. all faces are squares, and it has corners all the samecube
- Match the name. It has 6 square faces.cube
- Write the answer. cube
Check. Compare with the other shapes. Only a cube looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it looks like a box, with flat facescuboid
- Match the name. It has 6 faces, some rectangles.cuboid
- Write the answer. cuboid
Check. Compare with the other shapes. Only a cuboid looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Think about which shape is round like a ball.
- Look for the shape with no flat faces. A ball has no flat faces.sphere
- Check it can roll. A ball rolls in any direction.sphere can roll
- Write the answer. sphere
Check. A cone has a flat base, so it cannot roll in every way. ✓
Watch out. A sphere is round all over. It has no flat faces.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it has a point at the top and a round basecone
- Match the name. It has a flat round base and a point.cone
- Write the answer. cone
Check. Compare with the other shapes. Only a cone looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. all faces are squares, and it has corners all the samecube
- Match the name. It has 6 square faces.cube
- Write the answer. cube
Check. Compare with the other shapes. Only a cube looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Think about which shape is round like a ball.
- Look for the shape with no flat faces. A ball has no flat faces.sphere
- Check it can roll. A ball rolls in any direction.sphere can roll
- Write the answer. sphere
Check. A cone has a flat base, so it cannot roll in every way. ✓
Watch out. A sphere is round all over. It has no flat faces.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it is round like a ball, and it can rollsphere
- Match the name. It has no flat faces.sphere
- Write the answer. sphere
Check. Compare with the other shapes. Only a sphere looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it has a point at the top and a round basecone
- Match the name. It has a flat round base and a point.cone
- Write the answer. cone
Check. Compare with the other shapes. Only a cone looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Think about which shape is round like a ball.
- Look for the shape with no flat faces. A ball has no flat faces.sphere
- Check it can roll. A ball rolls in any direction.sphere can roll
- Write the answer. sphere
Check. A cone has a flat base, so it cannot roll in every way. ✓
Watch out. A sphere is round all over. It has no flat faces.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it looks like a box, with flat facescuboid
- Match the name. It has 6 faces, some rectangles.cuboid
- Write the answer. cuboid
Check. Compare with the other shapes. Only a cuboid looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it is round like a ball, and it can rollsphere
- Match the name. It has no flat faces.sphere
- Write the answer. sphere
Check. Compare with the other shapes. Only a sphere looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Think about which shape is round like a ball.
- Look for the shape with no flat faces. A ball has no flat faces.sphere
- Check it can roll. A ball rolls in any direction.sphere can roll
- Write the answer. sphere
Check. A cone has a flat base, so it cannot roll in every way. ✓
Watch out. A sphere is round all over. It has no flat faces.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. all faces are squares, and it has corners all the samecube
- Match the name. It has 6 square faces.cube
- Write the answer. cube
Check. Compare with the other shapes. Only a cube looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it looks like a box, with flat facescuboid
- Match the name. It has 6 faces, some rectangles.cuboid
- Write the answer. cuboid
Check. Compare with the other shapes. Only a cuboid looks like this. ✓
Watch out. Look for flat faces, round faces and points.
Method. Think about which shape is round like a ball.
- Look for the shape with no flat faces. A ball has no flat faces.sphere
- Check it can roll. A ball rolls in any direction.sphere can roll
- Write the answer. sphere
Check. A cone has a flat base, so it cannot roll in every way. ✓
Watch out. A sphere is round all over. It has no flat faces.
Method. Look at the picture. Think about the faces and the points.
- Look at the shape. it has a point at the top and a round basecone
- Match the name. It has a flat round base and a point.cone
- Write the answer. cone
Check. Compare with the other shapes. Only a cone looks like this. ✓
Watch out. Look for flat faces, round faces and points.