Percent in a purchase

Target: Find the cost of several discounted items.

Language target: Say the sale price of one before the total.

Likely miss: Students take the percent off the original and then forget there are two items, or they subtract the percent.

Ask: What is the price of one item after the discount?

If you see it: Find the sale price of one item, then scale.

Evidence to listen for: Both the percent and the count of items are visible in the work.

Next: If the percent was subtracted, return to a hundred grid.

Observable student moves: names both quantities, uses the represented relationship, and revises after feedback. This companion is not a score.