# Zeroing in on Number and Operations, Grades 5-6

## Key Ideas and Common Misconceptions

When you talk with students about their number sense and computational skills, you're bound to uncover some surprising gaps in their understanding. Knowing how to identify and bridge those gaps is essential for helping students at all levels advance as mathematical thinkers.

You can create a quote by adding products to your cart and selecting Quote in checkout.
##### Shipping Details
In stock. Free ground shipping. No minimum.

### Description

When you talk with students about their number sense and computational skills, you're bound to uncover some surprising gaps in their understanding. Knowing how to identify and bridge those gaps is essential for helping students at all levels advance as mathematical thinkers.

The Zeroing in on Number and Operations series, which aligns with the Common Core State Standards and the NCTM Sandards and Focal Points, features easy-to-use tools for teaching ke...read more

#### Anne M. Collins

Anne Collins has thirty years of teaching experience, having taught all grade levels K-12, as well as undergraduate- and graduate-level courses. She has been providing mathematics content professional development institutes and courses for teachers for the past fourteen years.

#### Linda Dacey

Linda Dacey, professor of mathematics and education at Lesley University, began her career teaching at the elementary level and, early in her career, received an NSF grant to develop a model program for preparing middle school teachers.

Contents
Introduction
I. WHOLE NUMBERS AND OPERATIONS
Millions and Billions
Place Value
Fact Practice
Finding Primes
Prime Builders
Connecting Division to Multiplication
Understanding Division Algorithms
Greatest Common Factors and Least Common Multiples
Problem Solving with Greatest Common Factors and Least Common Multiples
Working with Remainders
Estimating Quotients
Order of Operations
II. FRACTIONS
Fractions on the Number Line
Comparison of Fractions
Adding and Subtracting Fractions with Pattern Blocks
Modeling Multiplication of Fractions
Modeling Division of Fractions with Pattern Blocks
Multiplying Fractions with Arrays
Dividing Fractions with Area Model
Posing Problems with Fractions
Solving Problems with Fractions
III. DECIMALS
Making Sense with Thousandths
Converting Fractions to Decimals
Equivalent Values
Estimating Decimals
Multiplying Decimals with Arrays
Dividing Decimals
Ratios and Rates
Appendix