![Why It's Okay to Add Denominators when Adding Fractions](http://mathfour.com/wp-content/uploads/2011/06/MathFourFractions07.jpg)
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 →
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 →
Finding the domain of a function is slippery and misunderstood. Why do we do it? Why do we need domains anyway? And how do you find the domain? Continue Reading →