Author note — to cover

Cover exponential growth beyond money, populations, bacteria doubling and chain effects, modelled as start times multiplier to the power n, evaluating for given n, building the multiplier from a percentage rate or a doubling description, and comparing growth across equal periods. Curve recognition stays informal; plotting exponential graphs is Algebra's Higher content. Both tiers. (R16)

• Fluency — direct questions on exponential growth, 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).