Peter Martorella Books

Social Studies For Elementary School Classrooms: Preparing Children To Be Global Citizens

By Candy Beal, Peter H. Martorella, Peter Martorella, Peter Martorella, Candy Beal, Peter H. Martorella

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Based on the principle that the fundamental purpose of the social studies should be the development of reflective, competent, and concerned global citizens, Social Studies for Elementary School Cla...

Teaching Social Studies in Middle and Secondary Schools and Social Studies on the Internet Pkg

By Peter Martorella

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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.