Sent in by: Erin of Owatonna, MN Sort your change the easy way!
- a jar of change - shoe boxes or other cardboard boxes -
construction paper - cardboard tubes - masking tape - sharpened
pencils - You could use your hands to sort through the change in
your piggy bank, but it would be faster if you built a coin
sorter to do the work for you. - Make your coin sorter using
just cardboard boxes, paper, tape, cardboard tubes and string. -
Sketch your design ideas on paper before you begin building.
Think about the problem you are trying to solve. Consider the
different ways you could sort coins like by weight, size,
sliding ability, or shape. - Once you decide on a design, begin
building. Do you have to change your design as you build? Why?
What challenges do you face as you build that you didn't think
about when you were sketching your design? What changes did you
make? Did your design changes solve the problem? - Test out your
design with your spare change. Does it work? Do you need to make
more changes? Be sure