Number & Operations for Teachers 

    Copyright David & Cynthia Thomas, 2009

Chapter/Section

Chapter Six: Decimals & Percents: Operations & Connections

6.1 Modeling the Meaning of Decimal Numbers

Objective

Use concept models to represent the meaning of decimal numbers in our numeration system.

Overview

The numeration system used to represent whole numbers and integers may be extended to represent decimal numbers.  In this extension, digits to the right of the decimal point are associated with successive negative powers of ten. While this notation may satisfy university students, some other justification is needed when explaining these relationships to young learners.

Readings

Modeling Decimal Numbers

Homework

Exercises

Links