Ann Whitehead Nagda Books

Polar Bear Math: Learning About Fractions from Klondike and Snow

By Cindy Bickel, Ann Whitehead Nagda

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Dear Whiskers

By Ann Whitehead Nagda

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Jenny is discouraged when her second grade penpal turns out to be a new student from Saudi Arabia who does not speak English very well, but as she works with her they slowly become friends.

Meow means mischief

By Ann Whitehead Nagda

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A stray kitten turns out to be the perfect way to help Rana make friends in her new school and to feel more comfortable with her grandparents, who are visiting from India while her parents are away.

Polar bear math

By Ann Whitehead Nagda

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Uses charts and recipes for bear milk prepared for two baby polar bears born in a zoo to teach about fractions.

Houghton Miflin Harcourt Math Expression Vol. 2 Teacher Edition

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Houghton Miflin Harcourt Math Expressions Vol. 1 Teachers Edition

By Fuson Bexkmann

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Math Expressions Assessment Guide Grade 6

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.