Describe a data set

Target: Find the range of a data set.

Language target: Describe spread with a number and a unit.

Likely miss: Students describe one favorite value instead of the set.

Ask: What changes if the greatest value changes?

If you see it: Use a summary that sees every relevant value.

Evidence to listen for: The description matches a computation from the whole set.

Next: Ask what would change if one value changed.

Homework mark for this device

Until a teacher sets it here, family practice is optional. Stars are an incentive, not a grade. This setting is local. It is not a district roster.

unset optional required incentive

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