Angle rules

Angle rules

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about three angle properties: angles at a point, adjacent angles on a straight line and vertically opposite angles.

Below are some rules about angles. Draw a diagram in each box to show what the rules mean.

a) Angles at a point add to 360°.
 
 
 
 
 
 
 
 
 
 
   
b)
Adjacent angles on a straight line add to 180°.
 
 
 
 
 
 
 
 
 
 
 
 
c)
Vertically opposite angles are equal.
 
 
 
 
 
 
 
 
 
 
Task administration: 
This task can be completed with pencil and paper.
Level:
5
Curriculum info: 
Maths, Geometry and Measurement, Shape
Keywords: 
angles, angle properties
Description of task: 
Students draw diagrams to demonstrate their understanding of three angle properties: angles at a point, adjacent angles on a straight line and vertically opposite angles.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Geometric thinking, set 6
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 

 

Y8 (10/2001)
a)

NOTE: Accept alternative lettering or a different number of angles.
Also accept

moderate
b)  
NOTE: Accept alternative lettering.
difficult
c)

NOTE: Accept alternative lettering.
very difficult
NOTE: Alternative answers can be accepted, e.g., degrees rather than letters can be used.
Accept answer if student demonstrates an understanding of the principle of the rule.