Common Core standards for kindergarten through 3 rd grade math also require students to demonstrate a greater depth of understanding than needed under the previous California State Standards, ...

Sean Nank is a math expert who is helping teachers to implement the Common Core standards. He’s a professor at the ... For example, with 7+13, you want to be able to see the tens and ones. 10 + 3 is ...

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 ...