Move over there a bit.
TODAY’S MISSION · WARM-UP3 min
🤖••
You are the programmer. The robot follows!
Program a Robot Route
A robot cannot guess what we mean. Give it clear steps, put them in order, then debug together.
🧭 Clear commands🔢 Sequence🔁 Repeats🛠️ Debug
Ready? First, tell the robot to move forward one step.
STOP 1 · BE PRECISE4 min
Robots follow exactly what we say
“Go near the door” is not clear enough.
Move forward 3 squares, then stop.
A good command says what to do, how many times, and which way when needed.
Partner game: one person is a robot and can only follow “forward, turn left, turn right, stop.”
STOP 2 · ORDER THE STEPS5 min
Programmers put steps in order
To get the book on the table, what should happen first?
① Pick up the book② Walk to the table③ Stop by the table
Choose the most sensible first step:
STOP 3 · SPOT THE REPEAT5 min
Repeated actions can be grouped
Forward, forward, forward, forward. Can we say it shorter?
⬆️⬆️⬆️⬆️
→REPEAT 4 TIMESThis is a loop: put a repeated command inside a “repeat how many times” box. Climbing stairs, clapping, and brushing teeth all repeat.
Clap challenge: clap, clap, pause; do it twice. Can you describe it with a repeat?
STOP 4 · TRY PROGRAMMING6 min
Guide the robot to the star
You choose every step.
Start at the top left, avoid the red obstacle, and reach the bottom right. Add commands, then run your route.
My programNo commands yet
Hint: try moving right, then down.
🤖🧱⭐
STOP 5 · DEBUG TOGETHER5 min
It is normal when a program fails at first
The robot bumped into a wall. What now?
At which step did it go wrong?
Was the direction wrong, or was there one extra step?
Edit the command and run it again.
The robot took the wrong route. What is the best first debugging step?
STOP 6 · DESIGN FOR SAFETY5 min
Reach the goal safely
Plan a route: check the map, then choose.
🏫→🚸→🌳→🏠
A delivery robot should avoid obstacles and dangerous areas. Real navigation also considers roads, people, and safety rules.
There is a construction zone ahead. The robot should:
FINISH · SHARE YOUR WORK7 min
🎖️
MISSION COMPLETE · ROBOT ARRIVED SAFELY
A program is a set of clear steps. Debugging makes it better.
Clear commands, the right order, or repeated actions.
I observed, found the problem, and fixed it.
Take-home challenge: write a safe route from your classroom to the playground in five commands or fewer.