Algebra learners like this resource because it is easy to understand and it relates to their lives. Whether you are starting a new workout routine, or just climbing the stairs, your heart rate increases and decreases throughout the day. Have your number crunchers construct a graph of this model and answer some simple questions. If you have the time, make it more personal and monitor pulse rates at rest and after 20 jumping jacks. Either way, it is sure to keep your class engaged.

Concepts

linear functions, functions, linear relationships, linear, slope-intercept form, linear equations

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Additional Tags

y=mx+b, linear function, linear relationship, input, output, math

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Pros

• Very relatable resource
• Good model between relationships and quantities

Cons

• None

Common Core

8.F.A.1 8.F.A.2 8.F.A.3 8.F.B.4 8.F.B.5