Grades K–2
Put the Algorithm in Order
Number the steps of two everyday algorithms, brushing your teeth and planting a seed.
Science worksheet · Coding unplugged
Robot Maze
Write the code that takes the robot around the walls of a maze to the star.
- Grade level
- Grades 2–4
- Time
- About 20 minutes
- Topic
- Coding unplugged
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Coding unplugged, Algorithms, Debugging
What kids do
Printed on the sheet:
- Each arrow moves the robot one square: ↑ up, ↓ down, ← left, → right. The robot cannot go through walls.
- Write the code to get the robot through the maze to the star.
Teacher tip
Ask kids to count the squares before writing each arrow.
How to use it
- Act out the code first: one child is the robot, another reads the arrows.
- Tape a grid on the floor and walk the code.
- Let partners compare answers and settle any differences with a book or a video.
Watch for
Mixing up the robot’s left and right when it faces down the page. Turn the paper to match.
Talk about it
- How did you find the bug?
- What question do you still have?
Take it further
Have kids write a code for a partner to follow on a grid.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More coding unplugged worksheets
Grades 3–5
Write Your Name in Binary
Use a code of ones and zeros to decode two words and write your own name the way a computer could.
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