Teaching elementary school math just got trickier, or at least deeper. The new Common Core State Standards require students ... students were learning about addition during a class at the start of the ...

Math can’t catch a break. These days, people on both ends of the political spectrum are lining up to deride the Common Core standards ... communicate ideas like addition to schoolchildren.

“For some, common core is creating ... standard (CCSS.MATH.CONTENT.1.OA.C.6). It states students should be able to: Add and subtract within 20, demonstrating fluency for addition and subtraction ...

Common Core ... to be fluent in addition, subtraction, multiplication and division that progresses as students reach higher grade levels. One way of assessing Common Core Math Standards is a ...

Students can visualize the number 14, for example, as a full 10-frame and four extra items. Or 27, as two 10-frames and seven added items. And, she said, it helps students do math in their heads.