Biscuit factory: three gears: assessment

Learning Material  |  Interactive Lesson  |  RAR

Published on 2014 April 29th

Test your understanding of ratios by interpreting three-wheel gear systems where the wheels have different numbers of teeth. For example, how many rotations does a 10-tooth gear wheel make when driven by two driver wheels having 20 and 10 teeth? Also, choose a combination of three gear wheels to achieve a required number of rotations of a specified wheel. This assessment object is one in a series of two objects.
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Students revise a factual exposition to improve language choice and usage.
Students choose opinion adjectives and adverbs to support an evaluative stance.
Students interpret technical language.

Curriculum Information

K to 12
Grade 7, Grade 8, Grade 9
Numbers and Number Sense Measurement
Educators, Learners, Students

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Education Services Australia
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