Additional tasks. Yes. That's the reward. And it is awesome

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- #921
- 02 Aug 2018
Depending on how well you solved the challenges, your teacher can give you one of the two extra challenges:
- Change the wheels of your robot and test. Adjust the program if needed.
or
- Add a grabber to your robot. Program the medium motor to close and open the grabber. Grab an object.
Courses and lessons with this Tutorial
This Tutorial is used in the following courses and lessons

Level A2. "Space exploration". Robotics with LEGO
The second level of the Robotics with LEGO curriculum for students in second, third or fourth grades.
A new sensor is introduced - the Ultrasonic distance sensor can help the robot avoid obstacles. Students work with new concepts like loop, degrees and medium motor. Robots can now do two different actions at the same time - while solving missions on a field, the third motor clears detected obstacles. The first robot with chain-treads is built.
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Lesson 2 - Third Wheels and Square
Intro
Today we will test different support wheels and determine which one is most suitable for a robot that we will send to the moon.
The robot on the moon will be powered by a solar battery, but that means it has very little electricity and must not waste much of it to turn and navigate. You will need to find which support wheel resists the least when turning.
Another terrible problem would be if the robot got stuck. It will be too expensive to send a mechanic to the moon to help him. We will have to determine which wheels would get stuck easily in a small hole and which wheel can the robot pull out.
All teams should build different third wheels after which students can swap them.
At the end of the lesson, the most successful teams will be awarded a bonus task!
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