Second grade is working on addition and subtraction. While computational fluency and automaticity are very important, it's also important for students how to use and interpret the tools around them. Understanding how to correctly use a number line to solve a math problem is a form of literacy. The second graders had fun practicing with this number line, but in the future, we will find one that has no advertising!
Sue Levine is a Teacher-Librarian in Atlanta, GA.