Nicholas Falletta - Must Know Math Grade 8

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ISBN: 978-1-26-046803-8
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In memory of Garret Lemoi, my remarkable editor whose
unfailing skills and personal warmth helped make this and
several of my other books so very much better than I ever hoped
they could be.

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W elcome to your new math book! Let us try to explain why we believe youve made the right choice. Youve probably had your fill of books asking you to memorize lots of terms (such as in school). This book isnt going to do thatalthough youre welcome to memorize anything you take an interest in. You may also have found that a lot of books make a lot of promises about all the things youll be able to accomplish by the time you reach the end of a given chapter. In the process, those books can make you feel as though you missed out on the building blocks that you actually need to master those goals.

With Must Know Math Grade 8, weve taken a different approach. When you start a new chapter, right off the bat you will see one or more must know ideas. These are the essential concepts behind what you are going to study, and they will form the foundation of what you will learn throughout the chapter. With these must know ideas, you will have what you need to hold it together as you study, and they will be your guide as you make your way through each chapter.

To build on this foundation, you will find easy-to-follow discussions of the topic at hand, accompanied by comprehensive examples that show you how to apply what youre learning to solving typical 8th-grade math questions. Each chapter ends with review questionsmore than 250 throughout the bookdesigned to instill confidence as you practice your new skills.

This book has other features that will help you on this math journey of yours. It has a number of sidebars that will either provide helpful information or just serve as a quick break from your studies. The sidebars (by the way) point out important information, as well as tell you what to be careful about math-wise. Every once in a while, an sidebar (in real life) will tell you what youre studying has to do with the real world; other IRLs may just be interesting factoids.

In addition, this book is accompanied by a flashcard app that will give you the ability to test yourself at any time. The app includes 100-plus flashcards with a review question on one side and the answer on the other. You can either work through the flashcards by themselves or use them alongside the book. To find out where to get the app and how to use it, go to the next section, The Flashcard App.

We also wanted to introduce you to your guide throughout this book. Nicholas Falletta is a veteran education writer and the author of McGraw Hills SSAT/ISEE. Were glad to have the chance to work with him again. Nick has a clear idea what you should get out of a math class in 8th grade and has developed strategies to help you get there. Hes also seen the kinds of pitfalls that students can fall into and is an experienced hand at solving those difficulties. In this book, Nick applies that experience both to showing you the most effective way to learn a given concept and how to extricate yourself from any trouble you may have gotten into. He will be a trustworthy guide as you expand your math knowledge and develop new skills.

Before we leave you to the authors sure-footed guidance, let us give you one piece of advice. While we know that saying something is the worst is a clich, if anything is the worst in the math youll cover in this grade, it could be working with functions. Let Nick introduce you to functions and show you how to work confidently with them. Take our word for it: learning how to handle functions will leave you in good shape for the rest of your math careerand in the real world, too.

Good luck with your studies!

The Editors at McGraw Hill

T his book features a bonus flashcard app. It will help you test yourself on what youve learned as you make your way through the book (or in and out). It includes 100-plus flashcards, both front and back. It gives you two options for using it. You can jump right into the app and start from any point that you want. Or you can take advantage of the handy QR codes at the end of each chapter in the book; they will take you directly to the flashcards related to what youre studying at the moment.