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Teachers' Introduction:
This activity is designed to introduce students to the design
process. Human need, ergonomic design, electrical circuits
and material use will all be included in the concept design of
a portable lighting device. This activity may be used as a lead-in
activity or as a stand-alone project. You may want to thematically
incorporate this unit with language arts, science, math, etc.
Objective:
After unit completion, the student will be able to list the
major components of the design process, as related to the portable
lighting device.
Rationale:
This lesson is designed to enhance the students' knowledge
of the design process. After completing the lesson, the
student will also begin to understand some of the concepts related
to electrical circuits, material usage and ergonomic design.
Material List:
Styrofoam foil or reflective tape
foam board soldering iron
tag board acrylic paints
masking tape sand paper
double sided tape |
various files
dowels coping/compass saw
cardboard tubes paper hole punch
insulated bell wire 1 1/2- 3 volt bulbs
AA batteries adhesive
Velcro strips and dots clear plastic for lens (2 liter bottle) |
Let There Be Light!!-2
Procedures:
Students will decide on a portable lighting device with a
very specific use. The specific use may be for handicapped, underwater
lighting, size limitations, etc.
The students will first produce sketches of their concept and
along with details showing areas of specific use design.(i.e.:
attachment to wrist guard or headband, special on/off switch,
variable focus ring, etc.) Next, students will produce dimensioned
working drawings in the form of two or three view orthographic
drawings.
A model will then be shaped or constructed using appropriate
materials. A finish or covering should be applied for an authentic
appearance. Extra credit will be gained for functioning models.
Finally a colored and highlighted pictorial drawing should
be made to be used on a display board.
Upon completion, the student will make an oral, video and/or
electronic classroom presentation including the concept sketches,
working drawings, display board (including colored pictorial
drawing) and the finished model.
Evaluation:
To be successful in this assignment, the student will complete
and be graded on:
original "special use" concept
sketches
orthographic drawings
pictorial drawing
display board
model representation
class presentation
* optional working model or prototype
A final step could be to make a full prototype then plan out
the production of the "Specialized Lighting Device".
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