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Year 8

Securing the skill of using a pair of compasses

I can use a pair of compasses to draw different circles.

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New
New
Year 8

Securing the skill of using a pair of compasses

I can use a pair of compasses to draw different circles.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. A pair of compasses can be used to draw a circle with a particular radius.
  2. A pair of compasses can be used to draw two circles that intersect.
  3. A pair of compasses can be used to draw two circles that only intersect once.

Common misconception

Pupils may find it difficult to decide where to mark the centre point of each circle during Task A.

Pupils could start the task by drawing a pair of circles and labelling it with the question that presents the matching description.

Keywords

  • Radius - The radius is any line segment that joins the centre of a circle to its edge.

  • Compass - A pair of compasses is a tool which can be used to draw circles and arcs. A pair of compasses is sometimes referred to just as a compass.

For this lesson, pupils will need a pair of compasses, pencil, ruler and several sheets of plain paper.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Video

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Starter quiz

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6 Questions

Q1.
In which image is the radius labelled with a question mark?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q2.
An of a circle is part of the circle’s circumference.
Correct Answer: arc
Q3.
Points A and B are from a third point C if AC = BC.
Correct answer: equidistant
horizontal
parallel
vertical
Q4.
The radius of a circle is 18 cm. The diameter of the circle is cm.
Correct Answer: 36, thirty six
Q5.
In which image would the pair of compasses draw a circle with a diameter of 6 cm.
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q6.
Alex draws a circle with a pair of compasses. The image shows the pair of compasses just before he draws the circle. What is the circumference of Alex's circle?
An image in a quiz
5$$\pi$$ cm
10$$\pi$$ cm
Correct answer: 20$$\pi$$ cm

Exit quiz

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6 Questions

Q1.
Lucas draws a circle with a pair of compasses. The image shows the pair of compasses just before he draws the circle. What is the radius of Lucas's circle?
An image in a quiz
2 cm
Correct answer: 6 cm
8 cm
12 cm
16 cm
Q2.
The image shows two circles with points A and B at their centres. The distance from A to B is cm.
An image in a quiz
Correct Answer: 12, twelve, 12cm, 12 cm
Q3.
The image shows two circles with points A and B at their centres. The distance from A to B is cm.
An image in a quiz
Correct Answer: 7, seven, 7cm, 7 cm
Q4.
Points A to D lie on a straight line. The radius of the large circle is 10 cm; the radius of the small circle is 6 cm. The distance from A to D is cm.
An image in a quiz
Correct Answer: 32, thirty two, 32 cm, 32cm
Q5.
The image shows a circle with centre at point A. Sofia draws a circle with radius 4 cm with its centre at point B. How many times will the two circles intersect?
An image in a quiz
0
1
Correct answer: 2
Q6.
Aisha draws two circles. One has a radius 5 cm, the other has a radius 9 cm. The distance between the centre points of each circle is 14 cm. Which image matches Aisha's drawings?
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz