Starter quiz
- Match the shape to its properties.
- Pentagon⇔A polygon with five sides and five vertices. ✓
- Hexagon⇔A polygon with six sides and six vertices. ✓
- Decagon⇔A polygon with 10 sides and 10 vertices. ✓
- This shape has 4 sides of equal length. What is the name of this shape?
- 'rhombus' ✓
- This is a trapezium. Look carefully at the vertices and the angles inside the shape. Complete the sentence. There are ______ obtuse angles in the trapezium.
- '1' ✓
- Four full turns is equal to ______°.
- '1,440' ✓
- The code turns a character by the number of degrees shown. Andeep wants the character to turn a full turn. What does he need to add to complete a full turn? ______°
- '293' ✓
- Sofia turns a full turn in two moves. The first move is 197°. The second move is ______°.
- '163' ✓
Exit quiz
- Which of the angles fit to complete a full turn?
- A
- B
- C ✓
- What is the missing value in this bar model? ______°
- '134' ✓
- Complete the sentence. ______° is needed to complete the angles about a point.
- '113' ✓
- Complete the sentence. ______° is needed to complete the angles about a point.
- '17' ✓
- There are six angles of equal size about a point. Each angle has a value of ______°
- '60' ✓
- What is the size of angle a? Look for equal angles. ______°
- '40' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- Angles that meet at a point have a sum of 360 degrees.
- To calculate missing angles you can use addition and subtraction.
- Use mental or written strategies to calculate with angles up to 360 degrees.
Common misconception
Pupils think that the whole 360 degrees must be composed of different sized angles.
Ensure pupils are exposed to examples where two or more of the angles summing to 360 degrees are the same.
Keywords
Point - A point is an exact location. It has no size, only position.
Sum - The sum is the total when numbers are added together.
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