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, a group of people use a number of RCX's to determine one another's birthdays.
See "Birthday Decoder" 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.