Coverage diagnostic and repair · Optional extension
L096 · Allow 10–15 minutes for learners ready to move on. Answers are available after an attempt.
Stretch
Find area of a triangle with base 14 cm and height 9 cm, and P(red) from 7 red and 5 blue.
Reveal a worked check after attempting
Area=63 cm²; P(red)=7/12.
Deep challenge
An error log shows repeated percentage and equation mistakes. Propose two different fresh checks and what they test.
Reveal a worked check after attempting
A new multiplier problem tests percentage method; a new equation verified by substitution tests algebra and checking.