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Protractor
Copyright 2012, TeacherGeek Inc. System Patent Pending.
Blades
Measure Angles
16º
Using The ProtractorMechanisms
A protractor can help you measure and align the angles of your propeller or turbine blades. It can also be used to measure mechanisms such as the lever arm on rubber band racer or mousetrap vehicle.
Measure angles of turbine blades and propellers.
Find lever angles on vehicles and other mechanisms.
To measure angles:
Align the hub edge parallel with the protractor edge.
Align the connector strip edge paral-lel with the protractor edge.
Set the protractor notch onto the pivot point (dowel, skewer or tooth pick).
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™
Protractor
Copyright 2012, TeacherGeek Inc. System Patent Pending.
Tooth Picks (Propellers)Skewer Sticks (Mini Turbine)
Dowels (TeacherGeek Turbine & Mechanisms)
TeacherGeek® Protractor
Tooth Picks (Propellers)Skewer Sticks (Mini Turbine)
Dowels (TeacherGeek Turbine & Mechanisms)
TeacherGeek® Protractor
Tooth Picks (Propellers)Skewer Sticks (Mini Turbine)
Dowels (TeacherGeek Turbine & Mechanisms)
TeacherGeek® Protractor
Tooth Picks (Propellers)Skew
er Sticks (Mini Turbine)
Dow
els (TeacherGeek Turbine &
Mechanism
s)
TeacherGeek® Protractor
Tooth Picks (Propellers)
Skewer Sticks (Mini Turbine)
Dowels (TeacherGeek Turbine & Mechanisms)
TeacherGeek® Protractor
Cutting out protractors:A) Cut the notch corresponding to what the protractor will be used to measure. B) Cut around the outline of the protractor.Tip: Print the protractor on card stock.
