Step 9 Objective
Enlarge 2-D shapes by a positive whole-number or fractional scale factor.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
What changes when you enlarge a shape?
What stays the same?
What information do you need to complete a given enlargement?
If someone has completed an enlargement how would you find the centre and the scale factor?
When drawing an enlargement, what strategies do you use to make sure your enlarged shape will fit on the paper?
If you enlarge a shape by scale factor 3, what scale factor will take your image back to the size of your original? What can you say about the centre of the enlargement if the final image is in exactly the same position as the original object?