Sample PDF Lessons in Various Disciplines

Download pneumatics sample lessons:
Pressure in pneumatic systems. Force in pneumatic systems.

Download sample curriculum for working with gears:
Sample 1. Spur Gear Terms and Concepts.
Sample 2. Drawing an Approximate Representation of an Involute Spur Gear Tooth.

Download trebuchet sample lessons for math, science and engineering:
Perimeter, Area and Volume.
Mass, Gravity, Weight and Density.
Analyzing the Stress on the Trebuchet Axle.