In this activity students will be connecting a LEGO motor to various batteries to test their assumptions about the effect these batteries have on the speed of a motor. NOTE: This activity works with both NXT and RCX motors.

This giant walking crab was built by the imagination of resident LEGO genius Carter. Using pneumatics, the crab walks with two 3-point movements (front and back leg of one side with the middle leg of the opposite side). A series of 4 motors perpetually pressurizes 3 air tanks supply the power. A mot...

In this lesson students have to build a "spatula" (cantilevered beam) that can hold as much weight as possible. Students learn what makes strong and sturdy connections in LEGO building and can explore how cantilevered beams work.

This is part of the curriculum unit "Robotics: Assisti...

In this activity, students will design and construct a working RCX or NXT music box in which LEGO mini-figures move while a song plays.

Students will learn to build with gears, and learn to program music.

Materials:
* RCX or NXT
* Assortment of LEG...

Using the Hi Technic Accel Sensor, these two programs send (via the Mail Icon) positional data from one NXT to another NXT, which receives that value and drives forward and backward. The speed of the motors is relative to the angle the first NXT is tilted.

Learning Objective:
Build a robotic NXT LEGO car equipped with a light sensor and program it to drive at a speed based on the light sensor input.

Student Challenge:
Build and program a two-motor car equipped with a light sensor. The car should drive forward and will ha...

Popeye the Crab (named for his eye that continually popped off during construction) is a LEGO creation fabricated by a 14 year old boy. Popeye walks with a 3-point motion and runs automatically with a switching system on the back, which controls the pneumatic legs.

NXT motors are very easy to use, because of their built-in encoders. But, sometimes kids want to understand, or the teacher desires to explain how to collect information from a rotating axle. (The sensor has got its name because it is made of a light sensor and a sheet of paper only.)

In my physics class, the students modified their "Going the Distance" robots to push on a ball. This was an opening activity for my "Force and Motion" unit. We used some fabric taped to the floor as a hole.

In my physics class, my students create physical pendulums to study oscillations. They use the NXT and a light sensor to test their predictions regarding the period of the pendulum's oscillation