Showing posts with label measurement. Show all posts
Showing posts with label measurement. Show all posts

Tuesday, March 10, 2009

March 10 PSSA Math Boot Camp Winner

Our March 10, 2009 PSSA math challenge (algebra) problem involved exponents. Possible strategies involved subtitution, using logarithms, or "solving" technology (graphing calculator or computer software such as Mathematica). Answer is D.
  • The problem.
  • The problem and solutions.
  • The problem and solutions (utlizing Mathematica software).
--Mr. Bujak

Tuesday, January 13, 2009

January 13 PSSA Math Boot Camp Winner

Our January 13, 2009 PSSA math challenge problem winner is Cindi Gil. Since this was multiple choice, Cindi did a quick approximate measurement of one side of the regular (all side lengths are equal) hexagon at about 3 cm. Since there are 6 sides in a hexagon, Cindi added six 3's to get 18 cm for the perimeter. She picked the closest answer since her initial measurement of one side was only approximate.
--Mr. Bujak

Monday, January 12, 2009

January 12 PSSA Math Boot Camp Winner

Our January 12, 2009 PSSA math challenge problem winner is Ryan Rutledge. Ryan solved a measurement problem involving fractional parts of fractional parts. She divided the problem into smaller units of 1/9 and just added up. This strategy is elegant and simple. See also: number line.

To see the problem and solution, click here.

--Mr. Bujak