Tag: pi

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:…

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sorting pi, e, and root 2

Mathematicians, always economical,   love to categorize numbers according to their properties. This is because numbers belonging to the same category behave in the same way. You don’t have to deal with each one! That’s an economical way of preserving the energy demand of brain cells.  In the grades we give pupils tasks that involve sorting…

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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…

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