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Laura Amatulli
Laura Amatulli
(Rochester Hills - United States)

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

Lesson 39: Equations with Algebraic Fractions

The lesson begins with using the lcd to clear the fractions in the equation, and then a review of proportions follows to motivate the "shortcut" of cross multiplication for equations containing only a fraction on each side of the equation. The possible existence of extraneous solutions and solving the equations graphically is discussed before application problems are presented. The lesson concludes with exercises in manipulating formulas.

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