Check out this photo of two books explaining the addition of fractions – one from 1880 and one from 2009. Continue Reading →

Check out this photo of two books explaining the addition of fractions – one from 1880 and one from 2009. Continue Reading →

Christine asked me via twitter for some resources for Cuisenaire rods and teaching fractions. Of course I can’t pass the opportunity up to do some fun things with my rods! Continue Reading →

So you think you HAVE to find a common denominator when adding fractions? Well, not really. Especially if you want to inspire kids to really think like a mathematician and do some inventing! Continue Reading →

New research by Stanford Medical’s Dr. Vinod Menon shows that children can develop math skills and cognition early and quickly – with differences shown in as little as one year! Here is a way to start math learning early. Continue Reading →

Here’s how to understand and explain some of the top confusing terms in mathematics – pain free. Continue Reading →

I wrote this post showing that adding fractions can be done using the algebraic definition of addition of rationals: MathHeadInc (via twitter) has requested a video showing why this works. I aim to please. Here is the video showing why adding fractions using a common denominator is the same as the definition of addition of… Continue Reading →

Do you keep struggling to teach common denominators? Do your kids just not “get it”? Well, it’s time to quit. Yep! You can teach (and do) fractions without ever finding a common denominator. The key is in the definition of addition for rational numbers. If you have two numbers and the sum of them is . Granted… Continue Reading →