Signed change

Target: Find an ending position after a signed change.

Language target: Say whether the change rises or falls.

Likely miss: Students add the absolute values and keep a negative sign.

Ask: Where did you start, and which way did you move?

If you see it: Mark the start, then move by the change. Direction decides the sign of the move.

Evidence to listen for: The final position matches the story.

Next: Replay the move on a vertical number line.

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.