Sharon Callen Books

Teacher Created Materials - Literary Text: Duck Pond Fun - Grade 1 - Guided Reading Level A

By Sharon Callen

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Teacher Created Materials - Literary Text: My Life as a Bee - Grade 1 - Guided Reading Level E

By Sharon Callen

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My life as a bee

By Sharon Callen

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Duck pond fun

By Sharon Callen

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In this book, a little girl and her mother go to the park to watch the ducks. Vibrant illustrations and large easy-to-read font will help early readers with simple counting skills as they follow th...

Duck pond fun

By Sharon Callen

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My life as a bee

By Sharon Callen

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The Lovely One library bound Fiction Reader

By Teacher Created Materials Sharon Callen

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Diversion en el estanque de los patos

By Sharon Callen

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A little girl and her mother go to the park to watch the ducks.

El tren de Seb

By Sharon Callen

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Seb likes building long train tracks and short tracks. Every kind is fun.

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.