What Does Math Look Like in the Classroom?

In our current math unit, we are focusing on efficient strategies for addition and subtraction.  The goal is for students to strengthen their number sense, so the emphasis is on place value strategies.  That is why we don't rush students into learning the traditional US algorithm for these operations until 4th grade.
While every student develops along the path at their own pace (some might be learning the algorithm earlier), the following video gives you an idea of how it looks.