PROTRAcTOR - TeacherGeek.org

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Protractor
Page 1
Measure Angles
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.
Blades
Measure angles of turbine blades
and propellers.
Mechanisms
Using The Protractor
To measure angles:
Set the protractor
notch onto the pivot
point (dowel, skewer
or tooth pick).
Align the hub edge
parallel with the
protractor edge.
Find lever angles on vehicles
and other mechanisms.
16º
Align the connector strip edge parallel with the protractor edge.
Copyright 2012, TeacherGeek Inc. System Patent Pending.
™
Protractor
Page 2
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.
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Dowels (TeacherGeek Turbine & Mechanisms)
Skewer Sticks (Mini Turbine)
Tooth Picks (Propellers)
TeacherGeek®
TeacherGeek®
Protractor
Dowels (TeacherGeek Turbine & Mechanisms)
Skewer Sticks (Mini Turbine)
Tooth Picks (Propellers)
Copyright 2012, TeacherGeek Inc. System Patent Pending.
Protractor
Protractor
Dowels (TeacherGeek Turbine & Mechanisms)
Skewer Sticks (Mini Turbine)
Tooth Picks (Propellers)
Dowels (TeacherGeek Turbine & Mechanisms)
Skewer Sticks (Mini Turbine)
Tooth Picks (Propellers)
TeacherGeek®