But the way math was taught before Common Core was not always the only way. When the so-called "New Math" was introduced in the 1960s it was met with much of the same criticism Common Core is ...

Those days predated the Common Core math standards, which arrived in 2010 and put forward a central idea: Students should know why they arrived at an answer, and that is just as important as getti ...

For example, the Common Core math standards say fifth-graders should ... say that students should be able to explain how an author uses evidence to support particular points in a text.