It's not so straightforward — lines can model a variety of applications. Pupils experience linear relationships within the context of science, including Hooke's and Ohm's Laws. Class members got a taste of motion and speed from the previous activity and take that experience to move on to other science applications.

Concepts

hooke's law, ohm's law, direct variation, graphing, graphs, equations, linear equations, technology resources

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Instructional Ideas

• Have individuals develop a presentation for their answers to the challenge question presented in the first lesson of the unit

Classroom Considerations

• The class should be familiar with linear functions and their graphs
• The lesson serves as an introduction to the remaining two activities
• The seventh part of a nine-part unit begins to wrap up the concepts of the unit

Pros

• The end-of-unit test includes all the concepts learned throughout the unit
• The background teacher information gives the formulas to use in the upcoming activities

Cons

• None

Common Core

8.EE.C.7.a 8.EE.C.8.a HSA-CED.A.2 HSA-REI.B.3 HSF-IF.A.2 HSG-GPE.B.5