## “O Function! My Function!”

I’m going to build a simple set of functions. This set will wind up being very familiar when I’m done, but let’s pretend for a few minutes first. Function and O...

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# Category: CW: Math (Medium)

## “O Function! My Function!”

## Maria Agnesi and the Second Derivative

## Questioning, Not Answering

## The Eye of the Dragon

## Should we cancel cancelling “cancel”?

## Operations on Fractions

## Witches, Candy, Monkeys, and Math

## Adding Fractions: The Common Error

## Mathematics and Trauma

I’m going to build a simple set of functions. This set will wind up being very familiar when I’m done, but let’s pretend for a few minutes first. Function and O...

I’m currently reading selected parts of “Analytical Institutions”, the 1801 edition of John Colson’s translation of Maria Gaetana Agnesi’s 1748 text. Near the b...

Another Rant on “Mathematical” Puzzles A few months ago, I complained about those internet memes which claim to be mathematics. My complaint about the...

We obscure the beauty of mathematics when we jump straight to the end. The last few weeks, for our virtual, quarantine edition of Algebra II, we’ve been explori...

One word is being scapegoated for student misunderstanding. A recent trend in mathematics education is the idea that we should never, ever say the word “cancel”...

A tale of carts and horses. My child is in fifth grade. Last Friday, we received the second volume of his mathematics workbook. It starts with multiplication of...

Mathematics isn’t about finding answers. It’s about asking questions. As a mathematician, here’s a question I usually find boring: What’s the answer? Consider t...

This is one of the most common mistakes students make when adding fractions: For a long time, I thought that students did this solely based on confusion with mu...

I teach two sections of Honors Algebra II and two sections of Algebra II. Today, I introduced the concept of finding roots of rational functions. I did this wit...