Under Common Core, parents are likely to see some unfamiliar terms on their children’s elementary-school math homework. Here are some examples drawn from New York state’s math curriculum: –Grade 2 ...

An Iowa woman jokingly calls it “Satan’s handiwork.” A California mom says she’s broken down in tears. A Pennsylvania parent says it “makes my blood boil.” What could be so horrible? Grade-school math ...

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. The ...