Barbie caught a lot of flack back in the ’90s for declaring, “Math class is tough!” Today we find ourselves in the disorienting position of defending her. We recently got a note from an anonymous ...

Consider this sequence of numbers: 5, 7, 9. Can you spot the pattern? Here’s another with the same pattern: 15, 19, 23. One more: 232, 235, 238. “Three equally spaced things,” says Raghu Meka, a ...

Vol. 12, Supporting Students' Development of Measuring Conceptions: Analyzing Students' Learning in Social Context (2003), pp. 103-122 (20 pages) An official journal of the National Council of ...

Young children can crudely add and subtract numbers before they have learned the rules of arithmetic, a new study finds. Researchers presented five- and six-year-old children with problems such as, ...

Arithmetic Progressions Class 10 Notes: Here, students of Class 10 can find the revision notes for Class 10 Mathematics Chapter 5, Arithmetic Progressions. A PDF download link for the same has also ...