Learning kitGrades 11-12

Computer science: robotics

Program a maze-solving robot

Learn how robots sense, think and act, design a motorized robot's body in a browser robotics configurator, trace how inputs, a controller and outputs work together, plan a maze and a rule that solves any simple maze, then program a simulated robot with a distance sensor and a light sensor to find its own way out. Ages 16 to 18 or grades 11 to 12.

Time
About 2 hours, in two sittings
Steps
5 steps, 2 of them in Robotics
You need
A computer or Chromebook with a mouse or trackpad. Building a real motorized model in step 2 is optional: a small DC motor, a battery pack, wire, tape and cardboard or recycled parts. No account needed.

$5 for one learner: every step, the Robotics activities that check the work, the printable lesson, and the certificate with a page of the learner's own work.

A small robot on the black goal square of a walled maze, its orange pen trail showing every turn and dead end it tried on the way.

The 5 steps

  1. 1Learn about robotsRead and quizRobots beat people at fast, repetitive, precise work, and people beat robots at anything new. Both come down to sense, think, act.
  2. 2Build a robot model: motorized robotIn RoboticsA robot's body decides what it can do: how big it is, how its motors drive the wheels, where its sensors look. Design one in the Configurator, then see it on the floor.
  3. 3Explore the way robotics systems work togetherRead and quizInputs, a controller and outputs only make a robot when they work as one loop. Follow a single decision through all three.
  4. 4Learn about programmingMaze planPrograms that work once are easy. The real test is one that solves any simple maze. Plan a maze, then a rule that does not depend on knowing it.
  5. 5Write a program for a robotIn RoboticsTurn the right-hand rule into a program. The robot does not know this maze: it only feels walls with its distance sensor and sees the black goal square with its light sensor.
Robotics on the Blocks tab: the block list on the left with Movement open, and a program of Move Forward and Turn Right blocks under When Started.
Each step shows how Robotics works, then opens it with a checklist that ticks as the work gets done.

Work on a computer. The apps need a keyboard and a bigger screen than a phone: a laptop, desktop or Chromebook. You can pay here and open the emailed link on the computer.

One learner

Unlock the kit, $5

  • All 5 steps, worked on screen, with a lesson you can print if you like paper
  • Robotics activities that check the work as it is done
  • A numbered certificate with a page of the learner's own work: your maze plan, your pseudocode and your robot's program

We email a link that opens the kit on any computer. No account needed. We keep the email only to send the kit and certificate links: privacy.

Have a discount code?
Co-ops and classes: unlock it for a group

One payment and one code. Each learner types the code to unlock the kit on their own computer, and gets their own certificate at the end. Your pack page shows who has started and finished.

See a sample certificate (PDF) · Already paid? Find your link

Questions

What does the learner do in Program a maze-solving robot?

It has 5 steps: 1. Learn about robots; 2. Build a robot model: motorized robot; 3. Explore the way robotics systems work together; 4. Learn about programming; 5. Write a program for a robot. Learn how robots sense, think and act, design a motorized robot's body in a browser robotics configurator, trace how inputs, a controller and outputs work together, plan a maze and a rule that solves any simple maze, then program a simulated robot with a distance sensor and a light sensor to find its own way out. Ages 16 to 18 or grades 11 to 12.

What age is it for?

Grades 11-12. About 2 hours, in two sittings.

What is needed?

A computer or Chromebook with a mouse or trackpad. Building a real motorized model in step 2 is optional: a small DC motor, a battery pack, wire, tape and cardboard or recycled parts. No account needed.

Is there a certificate?

Yes. A numbered certificate with a page of the learner's own work, for your records or a portfolio. It is not course credit.