Mathematics for Teaching Tag: roots of quadratic equations

Tag: roots of quadratic equations

Solving quadratic equations by completing the square

I’m not a fan of  teaching the quadratic formula for solving the roots of quadratic equations because the sight of the outrageous formula itself is enough to make students wish they are invisible in their algebra class. Indeed who wants to have to do withOf course not all quadratic equations can be solved by factoring….

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What exactly is the square root of 36?

Mathematics is already a difficult subject so let us not make it more difficult to students to make sense of with the confusing rules we tell them. For example, we insist that the square root of 36 is 6 and -6 yet we also insist that √36 is equal to 6 and not -6. A colleague…

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