Over the past year, since I took over the common-core math beat, I’ve been thinking a lot about fractions. As I wrote in November, the Common Core State Standards for mathematics emphasize fractions ...

Have you ever tried to add or subtract fractions that have different denominators? It’s tricky, right? Join Ms. Susanna Post in this lesson to learn how to solve these types of challenging problems!

Use visual fraction models to add and subtract fractions with the same denominators. Use visual fraction models to add and subtract fractions with the same denominators. Notice patterns in the ...

NARRATION:Back in the deepest, darkest depths of time, there lived a great mathemagician called Hypatia. Numbers fell under her spell one by one. With them, Hypatia could do anything. Now Hypatia is ...

When learning to add fractions there’s a standard method they teach you in school: Make the denominator the same, and whatever you times the denominator by, also multiply the numerator by. You add the ...

UNKNOWN MALE #1:I'm seriously full, guys. I can't breathe. UNKNOWN FEMALE #1:Well I'm not surprised after what you had. I'd have been full after your starters. UNKNOWN FEMALE #1:'You had one and one ...