No devices. No prep spiral. No wrong-shaped thinking.

Put the algorithm on the table.

Print a complete sequencing and debugging game for one elementary class period. Students arrange, test, and repair instructions together—while you get exact cues for the tricky moments.

Build my free kit Under 10 min setup · no sign-up

Printed shape cards connected by wooden arrows with a small green debugging beetle token

TEST → NOTICE → FIX

01 / THE WHOLE PLAN

One printout. One period. Thinking you can see.

1
Pick the room
Set your time, team count, and one of three device-free challenges.
2
Print the pack
Get a timed guide, team roles, commands, and ready-to-run missions.
3
Test ideas aloud
Cards make each step visible. Bugs become clues, not grades.

02 / BUILD YOUR KIT

Tell us what walks into the room.

Nothing is uploaded or saved. Your selections rebuild the printable pages right here.

1 How much time?

20 min 30 min 40 min

2 How many teams?

teams

Plan for 3–5 students per team. Maximum 8 teams.

3 Choose a challenge

Move & mapRobot rescueStudents walk a precise route. Everyday logicBackpack checkTurn a routine into testable steps. Tabletop puzzleShape machineTransform paper shapes in order.

Use ink-saver modeKeeps card backgrounds white with bold black outlines.

Preparing your printable kit…

LIVE PREVIEW

Your classroom pack

Paper size: A4 / Letter friendly

03 / BUILT FOR THE REAL ROOM

A better answer than “that’s wrong.”

Many paths can work

The guide checks whether a sequence is followable and reaches the goal—not whether it matches one answer key.

Debug without blame

Students name the first unexpected result, change one thing, and test again. The bug belongs to the cards.

Safe roles for everyone

Role prompts distribute movement, materials, speaking, and observing. Safety notes are specific to each activity.