In 1960, a 23-year-old Soviet mathematician named Anatoly Karatsuba stunned the world of mathematics with a revolutionary discovery: a faster way to multiply large numbers. Known today as Karatsuba’s ...

Well, Barry Garelick, a veteran 7th and 8th grade math teacher, sent me a thoughtful note on the exchange. Garelick is the ...

The following are three examples of calculation strategies students might discover on their own if they were taught standard algorithms first and allowed to master them before moving on. Common Core ...