Reflecting the number 5

Reflecting the number 5

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Working with Students
Further Resources
This task is about drawing reflections with a mirror line.
Draw the reflection of the number 5 in the following questions.
The dashed line is the mirror line.

Question Change answer

Question Change answer

Question Change answer

Question Change answer

Task administration: 
This task can be completed with pencil and paper or by drawing online.
Copyright: 
Graphic copyright: NZCER
Level:
4
Curriculum info: 
Maths, Geometry and Measurement, Transformation
Keywords: 
reflection, transformations, drawing
Description of task: 
Students draw reflections of an object with a mirror line.
Curriculum Links: 
 
 
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Geometric thinking, sets 4-5
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
   

Y7 (10/1996)

Y8 (10/1996)
a) answer for a or online answer for a very difficult very difficult
b) answer for b or online answer for b difficult moderate
c) answer for c or online answer for c very difficult very difficult
d)  answer for dor  online answer for d difficult moderate
NOTE: Drawing the reflection of these shapes can be more difficult than first anticipated. Conceptualising orientation and actual drawing lines can be difficult online - especially with a mouse. For online drawing look for the correct orientation of the straight and curved lines, rather than cosmetic appearance.
Teaching and learning: 
Drawing online
It is important to note that drawing online is different from drawing on paper. It is a particular skill that may need to be taught to ensure it isn’t a barrier to the assessment focus of the task.
Drawing some of the diagonal reflections of the 5 can be difficult. Encourage students to take their time and check their answer afterwards.
Read more about Drawing as assessment.
Diagnostic and formative information: 
  Common error Likely calculation Likely misconception
a) - d) 
    - -
a) - c) - No reflection (especially in Y7)