Edward P Ortleb Books

Life in the rainforest primary science resource guide Transparencies reproducibles and teaching guide grades 2 3

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Life in the Temperate Forest Primary Science Resource Guide

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Nutrition

By Edward P Ortleb

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Recycling in the environment Environmental studies

By Edward P Ortleb

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Global environmental awareness Environmental studies

By Edward P Ortleb

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Plants and animals 1 3

By Edward Ortleb

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Provides background information, reproducible pages, and activities which include coloring, cutting, pasting, sequencing, matching, drawing, games, and puzzles. For grades 1-3.

Seasons and living things 1 3 Primary science

By Edward Ortleb

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Provides background information, reproducible pages, and activities which include coloring, cutting, pasting, sequencing, matching, drawing, games, and puzzles. For grades 1-3.

Heat light and sound 1 3 Primary science

By Edward Ortleb

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Mammals

By Edward P Ortleb

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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.