LEGO Basics 4 - Outputs

Objective

To introduce students to motors.

Description

Students connect motors and answer questions to help orient themselves with its use.

Procedures

In Class Activity:

1. Show students the RCX and explain the function of the different ports and the wires.
2. Have students attach a motor to port A. Next, have them turn on the RCX and then the program button. Have them notice the number of the program changes in the window each time they press the program button.
3. Choose program 1 and press RUN. Have students describe what is happening. It may be helpful for students to put a wheel on the axle coming from the motor.
4. Press the RUN button again so the motor stops. Disconnect the wire, turn it 180 Degrees and reattach the wire. Press the RUN button again. Ask students what is different. (The motor is going in a different direction.)
5. Take the second motor and attach it to port B. Press the run button. Help students understand that multiple outputs can operate at the same time at different directions, and at different speeds.

Continuation

• Attach a motor to a series of gears to lift something.
• Build a fast race car.
• Build a robot that draws a circle.
• LEGO Construction Basics 5 - Inputs