The Bicycle
A bicycle is one of the best examples of how  math, science, and technology work in a machine.

There are  many examples of
math, calculating distance a bicycle travelsscience, all the simple machines there are in a bicycle, engineering, making  a lighter safer bicycle and how a bicycle is so much better for the environment.

Every kid in the world should have a good bike and know how it works.

Math, science, and technology are everywhere in the world of design and a bicycle is one of the best examples.

Skills in design and design tools help to be  creative and innovative. You might invent a better bicycle one day.

Bicycle parts list: frame, wheels, tires, pedals, chain, gears, handlebars, saddle, brakes, and reflectors. 

More bicycle words: ride, cycle, pedal, and commute.
Connecting the coaster brake lever.
Adjusting the drive chain tension.
Mounting and adjusting the rear wheel.
This permanently mounting bicycle stand was welded to the bike by one of my parents. Great job!