Tag Archives: square roots

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… Read More »

The Pi Song

Memorizing without understanding is a no-no in this blog. But just for fun you can try this one on pi. Memorizing the lyrics will take you a long way in your math career. You can also use it as password. For my thoughts regarding teaching irrational numbers you may want to read Teaching irrational numbers:… Read More »

Math and Multimedia Carnival #7

Welcome to the 7th edition of Math and Multimedia blog carnival. Before we begin Carnival 7, let’s look at some of the trivias about the number seven: The Millennium Prize Problems are seven problems in mathematics that were stated by the Clay Mathematics Institute in 2000. Currently, six of the problems remain unsolved. Seven, the fourth prime number, is not… Read More »

Teaching irrational numbers – break it to me gently

Numbers generally emerged from the practical need to express measurement. From counting numbers to whole numbers, to the set of integers, and to the rational numbers, we have always been able to use numbers to express measures. Up to the set of rational numbers, mathematics is practical, numbers are useful and easy to make sense… Read More »

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