How Can These Five Non-Fraction Problems Help Make Sense of Adding and Subtracting Fractions?

Description

Why do we use common denominators when adding and subtracting fractions? The use of common size units is central to adding and subtracting whole numbers, decimals, measurements, and other areas of mathematics. This session explores ways to build connections for using common denominators with students' work in other areas of mathematics.

Lead Speaker

Debra Johanning, University of Toledo

Audience

3 to 5

Topics

Building Mathematical Knowledge for Teaching

Attachments