Zeroing in on Number and Operations, Grades 1-2

Key Ideas and Common Misconceptions

About the Series

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.

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Description

About the Series

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 Standards on Focal Points, features easy-to-use tools for teaching key...read more

About the Author(s)

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.

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.

Table of Contents

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Contents
Introduction
I. COUNTING, NUMBER SENSE, AND NUMERATION
Using Number Frames
Connecting Representations
Pattern of the Count
Counting by Tens and Ones
Using a Hundreds Chart
Missing Numbers of the Hundreds Chart
Sensible Number Problems
Along the Line
Writing Numbers
Counting by Twos, Fives, and Tens
Equivalent Representations
What's My Number?
II. MEANING OF ADDITION AND SUBTRACTION AND BASIC FACTS
Join and Separate
Counting On and Back
Facts for Ten
Doubles and Near Doubles
Subtraction Is More Than Take-Away
Anchor to Ten
What Do You See?
III. BUILDING COMPUTATIONAL FLUENCY
Modeling Addition and Subtraction
Adding and Subtracting in Parts
Open Number Line
Building the Standard Addition Algorithm
Building the Standard Subtraction Algorithm
Equality
Solving Problems
Posing Problems
Estimating Sums and Differences
Can You Make It?
Appendix
Answer Key

Resources

Product Details

Grade Range: 1-2
Media: 64 pp/paper
Year: 2010
Item No: 0797
ISBN: 978-157110-797-8

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