January 21 PSSA Math Boot Camp Winner

Our January 21, 2009 PSSA math challenge problem winner is Maryah Span. The geometry problem involved a triangle's interior angles, exterior angles, sum of interior angles = 180, supplementary angles. Maryah took a novel approach of estimating the angle measures knowing all the sum of the interior angles of a triangle = 180. She also knew the indicated exterior angle and the adjacent interior angles are supplementary (sum = 180). Knowing all this, Maryah simply crunched the numbers to come up with a quick solution.

• The problem and a few solutions.
• Maryah Span's solution.
• Maryah Span won a dress-down day.

--Mr. Bujak

January 20 PSSA Math Boot Camp Winner

Our January 20, 2009 PSSA math challenge problem winner is Telisha Alexander. Telisha solved the problem of calculating or explaining the mean, median, and mode of a sample set. See also: data analysis, statistics.

• The problem.
• The problem and solution.
• Telisha Alexander's solution.

--Mr. Bujak