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Kevin Driscoll
(Los Angeles - United States)I taught Computer Science and Mathematics from 2004-2007 at Prospect Hill Academy Charter School in Cambridge, MA. Since then, I completed a Master's degree in Comparative Media Studies at MIT and am now a PhD candidate in Communication at University of ...
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- From: San Diego Area Knowledge Exchange for Developmental Math (SAKE)
- Contributed By: SAKE Owner SAKE Owner
The lesson begins with using graphs to solve quadratic inequalities. AN equation modeling the height of a rocket is graphed along with a second equation that represents the minimum height at which the rocket can legally and safely be exploded. The intersections of the graphs provide the solution interval. A second method is then presented where the inequality is put into standard form and then solved for its x-intercepts. Interval notation and union of sets is reviewed before a purely algebraic procedure for solving the inequalities is presented. The lesson concludes with an application problem.
