by Baltimore teacher Fred Nastvogel, this motor kit facilitates a process
of discovery that is seated in a simple distinction. Instead of asking “How do assemble this kit,” the student reasons why
a motor would work at all. The answers to the why questions reside in principles
magnetism, and structure.
Model is genuine in that it produces electrical current when operated mechanically.
Data collection becomes purposeful and exciting. Students can
document RPM, thrust, electrical generation and then go about design change
Each part has a purpose.
The making of each opens the
door of consideration of a larger field. For instance, the consideration
and choice of “bushings” leads
into the consideration of bearings, and tolerance. The making of the framework
relates directly to issues of structure. The motor’s need to respond
to the rotational motion of the armature can be compared and contrasted
dynamic demands placed upon bridges and buidings.
The motor, running on
batteries, can develop enough speed and torque to drive applications.
Or it can launch student made rotors.
It can be geared to rotate
which in turn can sound a series of chimes, or act as a timing plate
a set of electrical
As students become comfortable
with the basic motor design platform, they can expand interest to larger,
more complex interpretations. One
many electromagnets and a disc can be used to make a demonstration
of a particle accelerator.
Includes instructions and 30 bulk kits for 30 students.
Requires 9V battery.
Kit available below.