Step 10 Objective

Solve problems using properties of angles, of parallel and intersecting lines, and of triangles and other polygons, justifying inferences and explaining reasoning with diagrams and text.


What if pupils find this a barrier?

See Year 9 geometrical reasoning mini-pack - Acrobat pdf document (148Kb). Phase 2 of the unit plan (page 9) provides some innovative strategies for solving geometrical problems.

Detailed teaching prompts are given on pages 25 to 36.