Coding puzzle · Coding
Robot route: collect 2 gems · Grade 7
Write the shortest arrow program that steers the robot around the walls, picks up 2 gems and reaches the goal on 8-by-8 grids. Practices sequencing, planning and counting moves.
- Grade 7 · ages 12 to 13
- Medium
- 5 to 10 minutes
- 1 page
- Free
The answer key is a separate page for grown-ups. Sign in to download it.
What the sheet says
Directions: Write the shortest program that collects every gem and reaches the goal. Draw one arrow in each box and leave spare boxes empty.
- up · right · down · left · start · goal · gem · wall
- Collect both gems, then reach the goal.
- Write the shortest program.
What your child practices
Your child practices sequencing, planning and counting moves. The skill is “Sequences”: order instructions to reach a goal.
- Grades and ages
- Grade 7, ages 12 to 13
- Time
- About 5 to 10 minutes
- Subject
- Coding
- Level
- Medium for Grade 7
- Answer key
- Yes, for grown-ups who sign in
- Printing
- 1 page, US Letter or A4, low-ink option
- Updated
How to use it
Work through the first program together, one line or arrow at a time. Use a pencil so changes are easy to make. It is pitched at the expected level for Grade 7, for practice after the skill has been taught.
An answer key comes with it as a separate page that grown-ups download after signing in.
Tip for grown-ups: Let your child move a coin or finger square by square for each arrow.
Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.
Coding · Grade 7
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