Group of Jake McGuire, Mike Onofray, and Christine FitzGerald
What is the engineering principle that the children will
learn?
The engineering principles that our activity box attempts to teach
the childern are elemenry fluid dynamics, specifically flow rates. It
also attempts to teach optimization techniques and teamwork.
What is the activity?
Our activity involves an inclined plane with two channels cut in
it to allow a flow of water. These channels each have locations in
which to place inserts of varying shapes (either straight or curved,
or of varying width) to modify the water flow rate. These inserts
will be made on a rapid prototyping process such as Layered Object
Manufacturing or Shape Deposition. When a suitable path is decided
upon, small boats will be started from the top of the path and raced
to the bottom.
What age group is this activity designed for?
This activity is designed for children of ages 10 and up, or
approximately fifth grade or higher. We feel that at younger ages,
the children would not understand the concepts, and would just place
pieces at random.
What will the children do, and how will they learn by doing
it?
The children will have to look at all of the pieces provided, and
determine which pieces will provide the highest flow rates. When
these pieces are selected, they will also have to choose an order in
which to put the pieces on the board. When these choices have been
made, the boats will be raced. The children will learn by seeing the
results of their choices, and the results of the other children's
choices.
What will be in the activity box?
The activity box will contain all of the inserts, as well as a
water return pump and some tubing to allow a continuous flow of water.
The top of the activity box will be inclined and have places for the
inserts to go.
How does your activity meet the requirements?
Our activity engages the students in selecting components for a
system, attempting to optimize based on a well-defined critera, a
common engineering activity.
Our activity will show students that engineers have to work with
other people, and that the design process is often more important to
the engineer than the construction process.
Our activity is competitive but non-violent, and requires creation
instead of destruction. Perhaps a reward could be given to the
winning team, as additional motivation to participate.
Our activity, when run in heats consisting of two teams of five,
with those students not actively participating recieving instruction
on elementary fluid dynamics, can occupy 30 children easily.
Our activity contains no hazardous materials, and the only
potential for creating a mess is by spilling water, which is a
relatively minor problem.
Our activity can be used by children regardless of disability.
Our activity is easily transportable in a compact car.