A robot program is a list of commands that run in order. On a grid, “forward 2” moves the robot two squares the way it is facing, and “turn left” or “turn right” turns it 90° without moving it. We write squares as (across, up): (2, 1) is 2 squares across and 1 square up. North is up, east is right. To find where the robot stops, follow every line and write down the square and the direction after each one.
One line at a time — “move or turn exactly as each line says, and keep track of the square and the direction”
(x, y) = squares across (east), squares up (north).
forward n: north adds n to the second number, east adds n to the first, south and west take away.
turn left / turn right: change only the direction by 90°. Write the square and direction after every line.
Use it for: First robot programs, block coding puzzles, coordinate grids in maths and maze challenges.
Worked example: 🗺️ A robot is on a grid at (2, 1), facing north. (The first number counts squares across to the east, the second counts squares up to the north.) It runs:
forward 2
turn left
forward 2
On which square does it stop? → (0, 3)
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
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