By Lillian Mongeau

Teaching elementary school math just got trickier, or at least deeper.

The new Common Core State Standards require students to demonstrate a deeper understanding of math concepts, which means teachers will have to change how they teach those concepts too.

The new standards, adopted in California and 44 other states, have ushered in a whole new set of academic standards for math, with significant changes in the early grades – kindergartners must now be able to count to 100 by the end of the year, for instance, rather than 30. Second graders will no longer learn multiplication tables; that’s now a third grade task. And geometry standards are now less about identifying and measuring shapes and more about building and deconstructing them.

via Common Core standards bring dramatic changes to elementary school math | EdSource Today.