Reuse Plan

Keep the routine: initial choice, unit-rate calculation, error analysis, whole-class check, and a constraint-based decision. Change the offers, units, and quantities. Recalculate the answer key each time.

For the next lesson, compare distance per hour. Ask students to explain how changing the units changes the meaning of the rate.

Before observation: "Students will compare offers, explain their reasoning, and revise a claim. I will use the independent check to decide whether to reteach unit rates before the transfer task."

After teaching: ____ of ____ students labeled both rates correctly. I adjusted ____ because ____. The next lesson will ____.

Actual preparation time for this lesson: ____ minutes. Material I would reuse: ____. Material I needed to revise: ____.