Spectrum Books

Spectrum Critical Thinking for Math 3rd Grade Workbook—State Standards for Grade 3 Math Strategies with Answer Key for Homeschool or Classroom
Spectrum Grade 5 Critical Thinking for Math Workbook—State Standards for 5th Grade Geometry, Fractions, Decimals with Answer Key for Homeschool or Classroom
Spectrum Critical Thinking for Math, Grade K
Spectrum Grade 8 Critical Thinking for Math Workbook—Rational and Irrational Numbers, Linear Equations, Geometry, Pythagorean Theorem, Classroom or Homeschool Curriculum
Spectrum Grade 6 Critical Thinking for Math Workbook―Multiplying and Dividing Fractions and Decimals, Ratios, Percents, Probability and Statistics, Classroom or Homeschool Curriculum
Spectrum Counting Money Workbook―Grade 2 Math Practice Counting Coins and Bills, Skip-Counting, Making Change, Classroom or Homeschool Curriculum
Spectrum - Short Vowels, Grade K
Uppercase Letters, Grades Pk - K
Long Vowels, Grade 1
Addition, Grade 1

Related Articles from our Blog

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.

Read the EAN and ISBN guide
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