Making enlargements

Making enlargements

Pencil and paper
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about making and enlarging shapes.
Practical task
Make the shapes below, enlarge them by the given scale factors and draw in the enlarged shapes.
 
a) i)
 
ii)
Use the sticks to enlarge this shape by a scale factor of 3.
  
Draw the enlarged shape below.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
>> Show your teacher.
 
b) i)
 
ii)

 
Use the sticks to enlarge this shape by a scale factor of 2.
 
Draw the enlarged shape below.
 
 
 
 
 
 
 
 
 
 
 
>> Show your teacher.
c)
i)
 
 
ii)
 
 
 
 
 
 
 
 
 
iii)
Use the sticks to make a simple shape. 
Draw it in the box here →.
 
Choose a scale factor and use it to enlarge your shape.
Draw the new shape in the space below.
 
 
 
 
 
 
 
 
What is the scale factor of your enlargement? __________
  
Task administration: 
This task can be completed with pencil and paper.
 
Equipment
Sticks (toothpicks, ice-block sticks, nursery sticks, or matchsticks - 50 per student)
Students make up the enlargement and show it to the teacher before drawing it on their activity sheet.
Level:
3
Curriculum info: 
Maths, Geometry and Measurement, Transformation
Keywords: 
2-dimensional shapes, enlargement, scale factor, resizing, drawing
Description of task: 
Students construct enlargements of 2-dimensional shapes using sticks.
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Geometric thinking, sets 3-4
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 a)

i)
ii)

Constructs the shape, and
draws the shape.

1 mark
(for both i) & ii))
b)

 

i)
ii)
 
Constructs the shape, and
draws the shape.

[Accept with or without the internal sticks drawn in]

1 mark
(for both i) & ii))
c)

 

i)
ii)
iii)

Draws a simple shape, and
enlarges the shape in i).
Correctly identifies the scale factor and enlargement is consistent.

1 mark
(for both i & ii))

No mark