1. Find the hidden letter

In this activity, use a robot equipped with a light sensor to determine the hidden letter message (under a table or in another room). The letter will be determined using light sensor collected data on 3 passes over of the letter.      Resources Find the Hidden Letter lesson plan...

2. The stubborn car

Think of a way to design and construct the stubborn car: a car that will always return to its original place no matter how far it is rolled away from its starting point. Tip: How can you track the rotary motion of the car’s wheels? This challenge provides a great...

3. Tomb raider

The idea of this challenge is to have students set up several light sensors to log data over time. After the setup is complete, run the programs, turn off the lights in the room, and have the students leave. Walk around the room near the different sensors with a flashlight....

4. Zombie attack

In this activity, a group of students each build a robot. Each robot is assigned a number. It will then have to tag other robots with the number by using mail. Five tags and the robot takes on that robot’s number. The winner is the robot that has given its...

5. Drive in a square

The goal of this activity is to make a robot car drive in a square path. Hint: Rotation sensors are great for controlling the angle of a car’s turn. Resources Square lesson plan – NXT-G (PDF) Square lesson plan – RCX + ROBOLAB (PDF)

6. Measuring the temperature of water

Use a temperature sensor, to measure the temperature of 3 different water sources. Gather data points every second for 25 seconds from each sample for analysis.

7. Tunnel vision

Design and construct a car and program it to drive through a tunnel, automatically turn on its headlights when it enters the tunnel, and turning them off when it gets to the other side.       Tip: What kind of sensor would be suitable for detecting when the robot...

8. Light sensor scavenger hunt

How can you determine the light conditions in different parts of a room? Can you find light sensor readings in the range of 0-30? 60-90? 90-100? Can you draw conclusions and make generalizations about light intensity in the room?