A Question From The USSR Olympiad Problem Book; Updated With Solution

A few days ago I posted on a problem (Problem 4(a) on Page 7) from the very nice The USSR Olympiad Problem Book, by D.O. Shklarsky, N.N. Chentzov, and I.M. Yaglom: We are given 80 coins of the same denomination; we know that one of them is counterfeit and that it is lighter than the … Read more

The Wealthy And Powerful Have Ruined The Economy; Now They’ve Turned Their Attention To Education

Diane Ravitch reviews two new books on the current “crisis” in education in the New York Review of Books (hat tip to Susan Ohanian, who has a very interesting site devoted to education here; incidentally, Ms. Ohanian is married to physicist and fine textbook author Hans C. Ohanian). Her review is entitled School ‘Reform’: A … Read more

A Question From The USSR Olympiad Problem Book

I just picked up a copy of The USSR Olympiad Problem Book, by D.O. Shklarsky, N.N. Chentzov, and I.M. Yaglom, and it looks delightful. The book’s foreword states that it is intended for high-school students, although outstanding middle-school students might also give it a go. Complete solutions are given, which are particularly detailed for the … Read more