## Guide for Parents & Teachers

This guide has activities and prompts for math journals that illuminate all the math in Newton’s Nemesis and how it…

## Keep, Change, Flip: Are Algorithms our Frenemies?

In our zest to have children learn math deeply and creatively, professional math educators sometimes give the impression that algorithms are the enemy. In my opinion, nothing could be further from the truth.

## From Fractions To Board Games

I recently stumbled upon the work of Robert Siegler, a professor of cognitive psychology at Carnegie Mellon University who is…

## A Fraction-Algebra Sandwich

Peck and Matassa (2016) recently published a research paper that reinforced why fraction division and multiplication is such an important…

## Analogies in Teaching Fractions: Lessons from Hong Kong and Japan

In Newton’s Nemesis, I wanted to provide a nice variety of visual and mental images of division with both whole…

## Connecting Whole Number & Fraction Division

In Newton’s Nemesis, I created Theo’s precocious little sister Leah not only because I was like that to my older sister (yes, I regret that a little bit now) but because I wanted to connect division with whole numbers and fractions.  There is some evidence that the difficulties with fraction division are rooted in understanding division…

## Starting a Research Blog on Dividing by Fractions

When I first envisioned using a comic book to teach fractions, I naturally went online to see if anyone had thought of the idea yet. There were plenty of resources on teaching the concept of a fraction, and even adding and subtracting. But when I searched…