Drawing circles

Drawing circles

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
This task is about radius and circles.
Practical task
Your task is to draw a bull's-eye target.
Use your compass and a ruler to draw four circles around the centre point below. Each circle has a different radius.
The table below shows the radius measurements for each circle you need to draw.
 
Circle
Radius
1
1 cm
2
2 cm
3
5 cm
4
7 cm
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Task administration: 
This task can be completed with pencil and paper, and other equipment.
 
Equipment
Compass; ruler.

You may need to explain the term "radius" to the students.
Level:
3
Curriculum info: 
Maths, Geometry and Measurement, Shape
Keywords: 
circles, radius, drawing
Description of task: 
Students use the given the radius to draw each circle on a bulls-eye target.
Answers/responses: 

Circles are drawn with correct radii ± 2 mm. [Allow for some overlap in the drawing of the circles.]
One measurement error in radii is made.

[NOTE: Use diagram below as a template for marking. You may wish to copy it onto an OHT/acetate sheet.]