Part of Lesson Plan: **Gears (updated) by Beau Sunahara

Activity Overview / Details

By dividing the number of teeth on the driven gear by the number of teeth on the drive gear we get our gear ratios between two gears.  If a driven gear has 24 teeth and a drive gear has 12 teeth the resulting calculation will be (24 / 12 = 2) which gives us a gear ratio of 2 : 1

Students must also describe which dirction each gear will turn if the first gear (yellow) is being spun clock-wise.

Teacher will explain as the first gear (yellow gear) rotates clockwise the second gear (red gear) will rotate in the opposite direction (counter-clock wise) while the last gear (blue gear) will rotate in a clock wise motion.

Teacher will show the animation of two gears spinning while marked with a white dot.

The teacher will ask for questions at the end of the lecture to clarify explanations.

Students will take Cornell style notes during lectures.