NXT A computer controlled brick and the “brain” of your robot that controls the motors and sensors

Motor A geared engine that provides rotation when supplied with electricity. A motor converts electricity into mechanical movement.

Wire The method of transport of electricity for the motors

Gears A toothed part that can change the speed, direction, or torque (power) of your motor

Axel A rod which is used to house wheels and join beams together

Beam A building unit of LEGOs with holes through the sides. The most common building unit.

Bushing A small piece which fits over the ends of axels to secure them into place

Peg A lego piece that goes through the holes in the beams Friction Peg A peg that prevents the beams from moving when connected

Plate Thin basic LEGO building piece

Block Basic LEGO building piece