To learn about application of electrical engineering, this lesson requires the students to build a game similar to Operation. An open circuit is created. One end is a wire maze made of a bare wire. The other end is a loop of bare wire attached to a popsicle stick. The object is to guide the loop...

This activity is an introduction to building with the NXT or RCX. Have the kids build a vehicle without motors that will roll down a ramp. The objective is to have the car roll as far s possible. Make sure to introduce concepts such as gravity, friction, and sturdy building with the legos.

Filter dirty water and then measure the turbidity of the water. We gave the students the decision to choose two of three of the following materials to put inside a cup with a hole in the bottom: cotton balls, gravel, and coffee filters. They used two of these materials and built a filter around the ...

In this activity, use an NXT and a light sensor to collect data about the light conditions of the room. Can you find light sensor readings in the range of 0-30? 60-90? 90-100? Draw conclusions and make generalizations about light intensity in the room.
See "Scavenger Hunt" PDF for Detailed Di...

In this activity, use an NXT car equipped with a light sensor to determine the hidden Morse Code message (under a table or in another room). The message will be determined using light sensor collected data on a pass over of the message.
See "Morse Code" PDF for detailed Instructions

In this activity, use an NXT car 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
See "Find The Hidden Letter" PDF for Detailed Instructions

In this activity, design and construct an RCX sturdy car and program it to be controlled by touch sensors that can push “dirt”
See "Bulldozer-RCX" PDF for detailed instructions.

In this activity, use an NXT car equipped with an ultrasonic sensor to navigate without bumping into obstacles such as walls or people.

In this activity, use an NXT brick equipped with two ultrasonic sensors to emulate a Theremin, an electronic instrument. One sensor will change pitch as distance to an object changes, and the other sensor will change volume as the distance to an object changes. The Theremin is meant to be played wit...

In this activity, use an NXT brick equipped with two light sensors to emulate a Theremin. One sensor will change pitch as the amount of light sensed changes, and the other sensor will change volume as the amount of light sensed changes. The Theremin is meant to be controlled with the hands, but any ...