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Laura Amatulli
Laura Amatulli
(Rochester Hills - United States)

Teaching 8th grade in a middle school in suburban Detroit I have strong interests in Earth Science and leadership.  I  have been a teacher consultant for our local National Writing Project site, Meadow Brook Writing Project, which keeps me active  ...

Lesson 23: Integer Exponents

To motivate the convention for negative and zero exponents, the lesson begins by observing the halving pattern found in continuously decreasing the exponent of a power of two by 1. After an application looking at the formula for Body Mass Index calculation, power functions of the form f(x) = kx^p are introduced. Radiation Intensity application problems follow before pure algebraic manipulation of exponential expressions are presented. The lesson concludes with a review of scientific notation.

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