Take three hands-up answers, not open call-outs. Steer toward the idea that nothing changes except where it sits — same size, same direction. Hold the word slide until Watch and Notice.

• 3 right, 2 up — trace one corner's journey with a finger, then a second corner, to show both moved the same. Ask how many squares across, and how many up? and take two hands-up answers before moving on.
• 4 right (no up) — turn-and-name: ask did the arrow change direction? before the reveal; it should still face the same way. Take one pupil's answer and revoice it.
• 2 right, 3 up — pause and take a prediction of the across-and-up move before you run it. Revoice a strong answer: so every corner goes two across and three up.

Talk this one through together — pupils take turns at the board and the class agrees or corrects out loud.

Call one slide at a time; a pupil drags the arrow to match. Before the class agrees, ask did any corner move a different amount? — the answer must always be no. Watch for the pupil who turns or flips the shape by mistake; revoice: a slide never turns it, it always faces the same way. The 3 left, 2 down move is the one that catches people — left and down are still slides.

This is the practice round — pupils take turns at the board, check each answer, and the class confirms before moving on. Keep the board work brisk rather than over-explaining.

Track the running across total and the running up total on the board as pupils call each slide, so the class can see the moves adding and cancelling. Across: 3 right then 2 left leaves 1 right overall. Up: 4 up then 3 down leaves 1 up overall. Let a pupil reason it out before you confirm the single slide is 1 right and 1 up. Watch for anyone slipping in a turn on the left-and-down move.