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Jenna McWilliams
Jenna McWilliams
(Bloomington - United States)

I studied creative writing and published some poems. Then I decided to  get all up in education's grill. I'm currently a doctoral student in the Learning Sciences program at Indiana  University.
keywords: participatory culture, social media, education,  ...

Repeating Decimals and Geometric Series

This activity begins by reviewing conversions between fractions and decimals with an emphasis on repeating decimals. The formula for the partial sum of a geometric series is bypassed and students are directed to use find partial sums by using the “multiply, subtract, and solve” technique which mimics the derivation of the formula for the partial sum of a geometric series. This sets the stage for students to quickly find the fraction representation of a repeating decimal number. This activity would be well-suited as a prelude to introducing infinite and partial sums of geometric sequences. http://www.mathedpage.org/ copyright informaiton: http://www.mathedpage.org/rights.html

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