Author note — to cover

Multiply coefficients and letters separately: 3a × 4b = 12ab, a × a = a², 2a × 5a = 10a², including negative coefficients and three-factor products. Higher powers via index laws, like 4a³ × 3a², sit on multiplying-powers; brackets sit in the expanding group. Both tiers. (A4)

• Fluency — direct questions on multiplying terms, 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).