Blanca Heredia Books

Two-year evaluation of the impact of in-service professional development on primary students' literacy outcomes.

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The purpose of this study was to evaluate a two-year professional development (PD) initiative implemented in an elementary school with low literacy achievement in the primary grades. The PD system...

4T

By Hernan Gomez, Blanca Heredia, Jorge Zepeda Patterson

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Los laberintos de la educacion

By Isabelle Schulte Tenckho, Salvador Cardus Ros, Blanca Heredia, Sergio Rizzo, Eric Hanushek, Gian Antonio Stella, Jose Antonio Marina, Walter Feinberg

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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.