Project Name: Wall bounce
Controlled by: Programmed
Programming Difficulty: Easy
Construction Difficulty: Easy
General Comment. This is a great introduction to basic construction and programming

Rules FOR STUDENTS

​You must use:
-1 NXT or EV brick
-2 motors
-1 touch sensor

You must:
Build a robot that can travel to a wall, hit the wall, then come back. 
It must start behind the start line, and finish by crossing the same line. 

Tips For students

Tip: Cars with four wheels will go straighter. Especially if both motors turn one axel.
Tip: Cars that use gears will go faster. A big gear on the motor and a small gear on the wheel will make the wheel turn faster. To use gears, the wheel's axel can't go through the motor's hole.
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SAMPLE PROGRAMMING (older icon based)

SAMPLE PROGRAMMING (newer word-block based)

TEACHER INFO

The distance between the line and the wall can be whatever you like. The smaller the distance the more success the students will have. I recommend 4-6 metres.
Extension idea: Make the vehicle turn around (180 degrees) for the trip back instead of reversing.
Extension idea 2: Make the vehicle stop by itself completely over the line by estimating distance. 
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​​Grading option: The quicker the time, the better the grade.
​If you are timing each robot, get a copy of this Google Sheet to help you score 

Classroom Tips

Score Sheets

Project Ideas