Author note — to cover

Construct the grid for two events with one axis per event: totals, differences and products of two dice, or two spinners; every cell one equally likely outcome. Question types: complete and count the grid. Both tiers. Probabilities follow on the sibling page; experiments with more than two stages need tree diagrams. (P6, P7)

• Fluency — direct questions on sample space diagrams, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).