Cutting triangles

Cutting triangles

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This task is about working out what a sheet of paper will look like when it is folded and has shapes cut from it.

Question

diagram of folding and cutting paper  
 
a)  A sheet of paper is folded in half and the corner is cut off.
     What will the sheet look like when it is unfolded?  
    •   shape 1

    •   shape 2

    •   shape 3

    •   shape 4

Question

diagram of folding and cutting paper
 
b)  A sheet of paper is folded in half and two triangles are cut out as shown.
     What will the sheet look like when it is unfolded?
    •   shape option 1

    •   shape option 2

    •   shape option 3

    •   shape option 4

    •   shape option 5

Task administration: 
This task can be completed with pencil and paper or online with auto-marking.
Level:
3
Description of task: 
Students identify what a sheet of paper will look like when it is folded and has shapes cut from it.
Learning Progression Frameworks
This resource can provide evidence of learning associated with within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y9 (04/1998)

a)
D
easy
b)
E
very easy