Year 1 2-D and 3-D Shapes: check-up and quiz

Key words. A flat shape is 2-D. A solid shape is 3-D, so it has depth.

Method. Look at the shape, then match its facts to a name.

1. Look at the shape. Is it flat, or is it solid? Flat shapes are 2-D. Solid shapes are 3-D.
   It is a flat (2-D) shape.
2. Read its facts. Each name has its own facts. Count the sides, corners or faces.
   It has 3 straight sides and 3 corners.
3. Find the name that matches. Only one shape name has these facts.
   triangle

Check. Say the name out loud. Does it fit the facts? ✓

Watch out. Count the sides or faces before you say the name.

Method. Count the corners one at a time.

1. Look at the square. Find each one of the corners.
   1, 2, 3, 4
2. Count them all. The last number tells you how many there are.
   4 corners
3. Write the answer.
   4

Check. Count again from the other side. You get 4 again. ✓

Watch out. Touch each one as you count it, so you do not miss one or count one twice.

Key words. A flat shape is 2-D. A solid shape is 3-D, so it has depth.

Method. Look at the shape, then match its facts to a name.

1. Look at the shape. Is it flat, or is it solid? Flat shapes are 2-D. Solid shapes are 3-D.
   It is a solid (3-D) shape.
2. Read its facts. Each name has its own facts. Count the sides, corners or faces.
   It has 6 flat faces, and they are all squares. It has 8 corners.
3. Find the name that matches. Only one shape name has these facts.
   cube

Check. Say the name out loud. Does it fit the facts? ✓

Watch out. Count the sides or faces before you say the name.

Method. Check the curved side of each shape, then pick the one that matches.

1. Check each shape. Look at the curved side of each shape.
   cube: no, pyramid: no, cone: yes
2. Find the one that matches. Only one shape has curved side yes.
   cone matches.
3. Write the answer.
   cone

Check. Read the facts for cone again. ✓

Watch out. Check every shape, not just the first one you see.

Method. Find the part that repeats, then copy it on.

1. Find the part that repeats. Look for the smallest group that comes back again and again.
   Repeat: triangle, square, square
2. Copy the pattern on to the gap. Keep the same order, one shape at a time.
   shape 6 is square
3. Write the missing shape.
   square

Check. Read the pattern again. It goes triangle, square, square, then triangle, square, square again. ✓

Watch out. Do not guess. Look at the shapes before the gap and copy the repeat.

Method. Turning a shape does not change its sides or corners.

1. Count the sides of the triangle. Turning the shape does not change its sides.
   3 sides
2. Count the corners of the triangle. Turning the shape does not change its corners.
   3 corners
3. Decide if the name still fits. A shape with these sides and corners keeps its name.
   Yes. It is still a triangle.

Check. Turn a paper shape round and count again. ✓

Watch out. Do not judge a shape by the way it points. Count its sides.

Method. Count the flat faces one at a time.

1. Look at the cuboid. Find each one of the flat faces.
   1, 2, 3, 4, 5, 6
2. Count them all. The last number tells you how many there are.
   6 flat faces
3. Write the answer.
   6

Check. Count again from the other side. You get 6 again. ✓

Watch out. Touch each one as you count it, so you do not miss one or count one twice. Some faces are on the back or underneath. Turn the real shape to count them all.

Method. Check each shape against the rule, then put the shapes into two groups.

1. Check each shape. Is each shape flat or solid?
   A: yes B: no C: yes D: no
2. Make the group of shapes that are flat (2-D). These fit the rule. The others are solid (3-D).
   Group: A and C
3. Write the answer.
   A and C

Check. Every letter is in one group only. The other group has: B and D. ✓

Watch out. A shape can only go in one group for each rule. Check every letter.

Method. Check the straight sides of each shape, then pick the one that matches.

1. Check each shape. Look at the straight sides of each shape.
   triangle: 3, circle: 0, square: 4
2. Find the one that matches. Only one shape has straight sides 0.
   circle matches.
3. Write the answer.
   circle

Check. Read the facts for circle again. ✓

Watch out. Check every shape, not just the first one you see.

Method. Check the flat faces of each shape, then pick the one that matches.

1. Check each shape. Look at the flat faces of each shape.
   cone: 1, cylinder: 2, sphere: 0
2. Find the one that matches. Only one shape has flat faces 1.
   cone matches.
3. Write the answer.
   cone

Check. Read the facts for cone again. ✓

Watch out. Check every shape, not just the first one you see.

Key words. A flat shape is 2-D. A solid shape is 3-D, so it has depth.

Method. Look at the shape, then match its facts to a name.

1. Look at the shape. Is it flat, or is it solid? Flat shapes are 2-D. Solid shapes are 3-D.
   It is a flat (2-D) shape.
2. Read its facts. Each name has its own facts. Count the sides, corners or faces.
   It is round. It has no straight sides and no corners.
3. Find the name that matches. Only one shape name has these facts.
   circle

Check. Say the name out loud. Does it fit the facts? ✓

Watch out. Count the sides or faces before you say the name.

Method. Count the straight sides one at a time.

1. Look at the square. Find each one of the straight sides.
   1, 2, 3, 4
2. Count them all. The last number tells you how many there are.
   4 straight sides
3. Write the answer.
   4

Check. Count again from the other side. You get 4 again. ✓

Watch out. Touch each one as you count it, so you do not miss one or count one twice.

Key words. A flat shape is 2-D. A solid shape is 3-D, so it has depth.

Method. Look at the shape, then match its facts to a name.

1. Look at the shape. Is it flat, or is it solid? Flat shapes are 2-D. Solid shapes are 3-D.
   It is a solid (3-D) shape.
2. Read its facts. Each name has its own facts. Count the sides, corners or faces.
   It is round like a ball. It has no flat faces and no corners.
3. Find the name that matches. Only one shape name has these facts.
   sphere

Check. Say the name out loud. Does it fit the facts? ✓

Watch out. Count the sides or faces before you say the name.

Method. Check each shape against the rule, then put the shapes into two groups.

1. Check each shape. Check each shape: is it a triangle?
   A: no B: yes C: no
2. Make the group of shapes that are triangles. These fit the rule. The others are not triangles.
   Group: B
3. Write the answer.
   B

Check. Every letter is in one group only. The other group has: A and C. ✓

Watch out. A shape can only go in one group for each rule. Check every letter.

Method. Turning a shape does not change its sides or corners.

1. Count the sides of the rectangle. Turning the shape does not change its sides.
   4 sides
2. Count the corners of the rectangle. Turning the shape does not change its corners.
   4 corners
3. Decide if the name still fits. A shape with these sides and corners keeps its name.
   Yes. It is still a rectangle.

Check. Turn a paper shape round and count again. ✓

Watch out. Do not judge a shape by the way it points. Count its sides.

Method. Check each shape against the rule, then put the shapes into two groups.

1. Check each shape. Look for a curved part on each shape.
   A: no B: yes C: no D: yes
2. Make the group of shapes that have a curved part. These fit the rule. The others do not have a curved part.
   Group: B and D
3. Write the answer.
   B and D

Check. Every letter is in one group only. The other group has: A and C. ✓

Watch out. A shape can only go in one group for each rule. Check every letter.

Method. Count the flat faces one at a time.

1. Look at the cylinder. Find each one of the flat faces.
   1, 2
2. Count them all. The last number tells you how many there are.
   2 flat faces
3. Write the answer.
   2

Check. Count again from the other side. You get 2 again. ✓

Watch out. Touch each one as you count it, so you do not miss one or count one twice. Some faces are on the back or underneath. Turn the real shape to count them all.

Method. Count the corners of a pyramid, then compare with the number given.

1. Count the corners. Count each one once.
   A pyramid has 5 corners.
2. Compare with 4. Is the number the same?
   4 and 5 are not the same.
3. Write the answer.
   No. A pyramid has 5 corners.

Check. Count again to check: 5. ✓

Watch out. Count every one, including any on the back or underneath.

Method. Find the part that repeats, then copy it on.

1. Find the part that repeats. Look for the smallest group that comes back again and again.
   Repeat: circle, triangle
2. Copy the pattern on to the gap. Keep the same order, one shape at a time.
   shape 6 is triangle
3. Write the missing shape.
   triangle

Check. Read the pattern again. It goes circle, triangle, then circle, triangle again. ✓

Watch out. Do not guess. Look at the shapes before the gap and copy the repeat.

Method. Check each shape against the rule, then put the shapes into two groups.

1. Check each shape. Is each shape flat or solid?
   A: no B: yes C: yes D: no
2. Make the group of shapes that are solid (3-D). These fit the rule. The others are flat (2-D).
   Group: B and C
3. Write the answer.
   B and C

Check. Every letter is in one group only. The other group has: A and D. ✓

Watch out. A shape can only go in one group for each rule. Check every letter.