This is crucial, Kohlmeier says. When students are doing practice problems in a textbook chapter on quadratic equations, they know each problem can be solved by factorization -- even if they cannot say why. But in the world, whether in finance, software or education, the right ...
STANDARD: F.IF.C: Analyze functions using different representations.Khan Academy Video: Vertex form introductionKhan Academy Video: Graphing quadratics: vertex formKhan Academy Video: Quadratic word problems (vertex form)Khan Academy Problems: Graph quadratics in vertex formKhan Academy Problems: Quadrat...