Coltrinari Books

Ca Marche 1 Teacher's Resource Package

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A middle years FSL resource that follows a Communicative and Experiential methodology, and uses the conclusions in the National Core French Study as guiding principles.

Ca Marche 2 Workbook

By Gina Boncore Crone, CRONE ET AL

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A middle years FSL resource that follows a Communicative and Experiential methodology, and uses the conclusions in the National Core French Study as guiding principles.

Ca marche! 3 Mon Carnet

By Trudy, Fornasiero Nancy, Patenaude Brigitte, Rincker Stephanie, Smithies Sharon Flesher

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Ca Marche 3 Student Text

By Trudy Flesher, BONCORE ET AL

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A middle years FSL resource that follows a Communicative and Experiential methodology, and uses the conclusions in the National Core French Study as guiding principles.

Ca Marche 3 Teacher's Guide Kit

By Coltrinari

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Ca Marche 2 Teacher's Resource Package

By Coltrinari

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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.