A route must fit its map
Make a small guide a reader can use to locate a feature or follow a complete route on a paper scene.
Read the whole source. Pick one way to make your guide. You can point, speak, sign, use AAC, draw, build or ask someone to write your exact words. Stop for a break whenever you need one.
Whole supplied source
Fictional paper scene: Repair the game route. The grid has 4 columns, labelled A to D left to right, and 4 rows, labelled 1 to 4 top to bottom. All cells have the same size. Up means towards the top of this page, down towards its bottom, left and right across this page. Moving one cell reaches the neighbouring cell; diagonal moves are not offered. The start marker is at B2; the target is at C3. spare-card box is at A4; guide card is at D1. The closed cells are C2: neither enter nor pass through them. The supplied instruction is 1 cell right, then 1 cell down. Follow its instructions in the stated order. This scene is supplied information, not an observed school place or a map at real-world scale.
Use or repair this instruction so a reader can find the stated target. Name the positions and show a check.