Author note — to cover

Generate any term directly from a position-to-term rule given in words or as an expression like 3n + 1, without stepping through earlier terms, and compare the efficiency against term-to-term for distant terms. Finding the nth term yourself belongs to the linear nth term group. Both tiers. (A23)

• Fluency — direct questions on position-to-term rules, 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).