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Performance Task:
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Your task is to design and construct a mechanical
device that consists of two or more simple machines. You are to follow the
guidelines below in your design and construction:
- Use recycled and common materials plus any necessary fasteners. (Do not
use manufactured toy building materials.)
- Your machine should have moving parts, but no power source like a
battery or motor. Only human energy can be used.
- Your machine needs to do some kind of work.
Make a written explanation of your machine and explain how it works.
Include any design drawings that you used. Give a name to your machine.
Discuss the forces, work, motion, and simple machines that are involved in
your device. Give a brief explanation of motion and why it is important in
machines. Describe how things move and why they move in the ways they do.
Notes to the teacher:
The following resources could be
made available to students for "research."
- Third and fourth grade science
textbooks
- Library books on work and simple
machines
- Laser disk: "Windows on Science," Optical
Data Corp.
The following materials should, if
possible, be made available for students to use:
- variety of old and/or discarded
materials to use in construction
- fasteners - nails, screws, glue,
paper fasteners, hammers, etc.
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Knowledge / Skills:
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Use expository writing skills in subjects other
than English language arts. (ela58)
Understand the concepts and uses of machines
(e.g., levers and pulleys). (s49)
Plan and apply real or hypothetical models and
constructions to facilitate investigation and learning and the solution to
practical problems. (s115)
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