Author note — to cover

Evaluating a fraction to a negative index by inverting first then applying the positive index, e.g. (2/3) to the -2 is 9/4; mixed numbers converted first. Assumes negative-indices and the quotient rule from power-of-a-product; fractional indices on fractions are Higher, on negative-fractional-indices. Both tiers. (N7)

• Fluency — direct questions on a negative index on a fraction, 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).