Relay Race

A lesson involving LEGO MINDSTORMS NXT robots and light sensors, student pairs program the robots to follow a flashlight as its light beam moves around.

Students learn and use the properties of light to solve the following challenge: "A mummified troll was discovered this summer at our school and it has generated lots of interest worldwide. The principal asked us, the technology classes,...

Lighting is responsible for nearly one-third of the electricity use in buildings. One of the best ways to conserve energy is to make sure the lights are turned off when no one is in a room. This process can be automated using motion...

Learners build Lego cars with attached light sensors. They program the car to enter a tunnel and reverse out when it records a darker light reading.

Students learn that fats found in the foods we eat are not all the same; they discover that physical properties of materials are related to their chemical structures. Provided with several samples of commonly used fats with different...

Students use simple household materials, such as PVC piping and compact mirrors, to construct models of laser-based security systems. The protected object (a "mummified troll" or another treasure of your choosing) is placed "on display"...

Pupils program an RCX to play one sound if a touch sensor is pressed down and another if it is not pressed. They write the program to repeat twenty times and incorporate the use of both a fork and a loop.

Students collect data about lighting conditions around a room using a light sensor and RCX. They use software to upload and analyze the data in order to draw conclusions about light intensity in the room.

Students investigate the materials properties-such as acoustical absorptivity, light reflectivity, thermal conductivity, hardness, and water resistancea-of various materials. They use sound, light and temperature sensors to collect data...

Student teams design their own booms (bridges) and engage in a friendly competition with other teams to test their designs. Each team strives to design a boom that is light, can hold a certain amount of weight, and is affordable to...