Step 4 Objective
Recognise and visualise the transformation and symmetry of 2-D
shapes, including reflection in given mirror lines and line symmetry.
Construct 3-D models by linking given faces or edges.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
Give me instructions to reflect this shape into this mirror line.
What would you suggest I do first?
How do you decide where to position each point in the image?
Make up a reflection that is easy to do.
Make up a reflection that is hard to do. What makes it hard?
Can you sketch the net of a square-based pyramid, a hexagonal prism, etc.?
Given the shape on the cross-section (e.g. an L-shaped hexagon), how many faces would the corresponding prism have? What shape would the faces be?
Show any net of a cube or a cuboid. Where would you put the tabs to glue the net together?
Construct a 3-D shape with given properties, e.g. at least two sets of parallel faces and at least two triangular faces.