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The Quadratic Formula  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
Many students think of decimals as exact. More decimal places is even more exact. BUT, this is actually not the case. When the solution to a math problem is irrational, meaning a nonterminating, nonrepeating decimal, and you "round to the nearest tenths or hundredths," you are actually making the solution less precise. The most exact answer is always either a fraction, if possible, or a simplified radical. Here we look at an example of decimal approximations versus simple radical form in the context of solving a quadratic equation.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
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Sample Problems (13)
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The Quadratic Formula
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