Adria F. Klein Books

I LIKE TO WRITE Dominie Carousel Readers

By Dominie Elementary

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How many are missing

By Adria F. Klein

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What is a half

By Adria F. Klein

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Which One Is Next Level a Book 24

By Adria Klein

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The measurement mysteries

By Adria F. Klein

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Children will be able to: using nonstandard measures, find a way to measure the lengths of different objects; compare the lengths of different objects; display graphic information; pose a question...

Pies de dos en dos

By Adria F. Klein

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Explains the numerical concept of counting by two's.

Barack Obama

By Adria F. Klein

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At a time when our country needs inspiring leadership, Senator Barack Obamas charisma, intellect, and policies provide us hope. His unusual name stems from an unusual upbringing that as he says, co...

Mathematiques

By Adria Klein

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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.