Translations in the coordinate plane
- Reading the change off a picture — 3 tasks
- The two numbers are the arrow — 3 tasks
- Running the rule — 3 tasks
- Finding the rule, and using it anywhere — 3 tasks
- Going Deeper — 6 tasks
- Practice — 24 tasks
- Summary — 2 tasks
- Cool-down — 3 tasks
Classroom activities
Things a class does rather than writes on. Each one is a finished PDF: print it, cut it up if it says so, and hand it round.
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Translations: Which Translation — or None? — Cut & Glue Sort 25 minutes, including the cutting · 5 sheets
12 pieces — rules, arrows on squared paper, point pairs and shifts in words — sorted into a translation, the translation that undoes it, and not a translation at all, where a shear in the same shape as a translation rule is the piece that fools almost everybody.
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Translations: Which Way, Which Coordinate? — Answer Maze 10–15 minutes · 4 sheets
One page and nothing to prepare: 8 boxes that run a translation rule forwards and backwards, follow a shift in words and find a rule from one point — where each wrong answer is one of the teachers' card's coordinate errors, a minus dropped, a rule run the wrong way, a number on the wrong coordinate, and leads to a box that sends you back.
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Translations: Is That the Rule’s Arrow? — Mystery Picture 25–35 minutes · 4 sheets
25 squares, each a translation rule and an arrow on squared paper: fill the square if the arrow is the rule's arrow. The wrong arrows are reversed, point one way wrong, swap the run and the rise, or stop one square short — and when every square is right, a letter appears.
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Translations in the Coordinate Plane — Scavenger Hunt a full class period · 13 sheets
16 cards round the room: run a translation rule on a point, run it backwards, follow a shift in words, find the rule from one point and use it on another — every answer is a point, a wrong answer lands on a card that sends the group back, and a clean run is 8 lines on the record sheet.