Introduction to Motors





Name of Activity

Introduction to Motors




motor, wire, batter, pulley, connection, electricity, axle, band, primary colors


Simple Machines

Grade Level

K, 1, 2, 3


1 Hour Total

Lesson Objectives:

– To familiarize students with the LEGO motor, wire, and battery pack and how they function

Brief Description

In this activity, students will learn to connect the LEGO motor, wire, and battery. Students will use the spinning motor to make a piece of art work that they created. If students have made pulley walls, they will attach their motors to the pulley wall as well.

Materials Needed:

– LEGO Simple Machine Kits.

– ‘Color Circles’ Worksheet.

– Extra batteries or battery packs.

– Scissors.

– Tape.

– Markers, crayons, or colored pencils in primary colors.

– Color wheel to explain mixing of primary colors.

Preparation and Set Up:

– Arrange students in pairs.

– Distribute ‘color wheel’ worksheets.

– Distribute markers, crayons, or colored pencils.

– Check that battery packs are working.

Necessary Background



  1. Introduce the new pieces.
    1. Explain that these pieces use electricity and have moving parts. This means that the students will have to be EXTRA CAREFUL and if the pieces are not used properly they will be taken away.
      1. Motors and things attached to motors should NEVER touch people.
      2. Motors should be run at your seat or on the floor. You should NEVER walk around with your motor.

  • Introduce the new pieces.
  • Show students how to connect the pieces. Talk about electricity and how it travels through the wire from the battery pack to the motor and that this is why the metal pieces must be connected for the motor to work properly.
  • Introduce the challenge by talking about primary colors and what happens when you mix two primary colors. Demonstrate what a color wheel is and how two primary colors produce the color between them.
  • Show students how to color and cut out the circles on their ‘color circles’ worksheet.
  • Have students color one wheel with two primary colors and the other wheel whatever the students want.
  • Tape the color circles to a pulley wheel and attach the wheel to a motor that is hooked to a battery pack.
  • Let the students explore what happens when their color circles spin.
  • Have students attach their pulley walls consisting of 4 pulley wheels to their motor using an axle extender.
  • Show students how they can attach 4 color wheels to the same wall and how they will all spin at once.
  • Extensions or Modifications:

    – Allow students to do extra color designs on the ‘Color Circle’ worksheet (print out extras).

    Sample Image 1

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