Want to help your sixth-grader master math? Here are some of the skills your sixth-grader will be learning in the classroom. In a herd of horses, the ratio of legs to tails is 4 to 1 (or 4:1) because ...

Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others. You’re sitting at the end of a long conference table, ...

Want to help your seventh-grader master math? Here are some of the skills your child will be learning in the classroom in seventh grade. At a “25% Off” sale, Marissa buys a skirt for $40.50. What was ...