Reflections

Target: Reflect a point across the x-axis.

Language target: Say which coordinate stays and which changes sign.

Likely miss: Students change the wrong coordinate for the named axis.

Ask: Which coordinate should flip?

If you see it: The axis you reflect across is the one that stays.

Evidence to listen for: The student can say which coordinate flipped.

Next: Fold a paper coordinate grid if the axis is mixed up.

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.