SKU: 84464257261

Singapore Math Dimensions Math Textbook 8A

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Singapore Math Dimensions Math Textbook 8ADimensions Math Textbook 8A Chapter 1: Exponents and Scientific Notation 1. 1 Positive Exponents and the Laws of Exponents 1. 2 Zero and Negative Integer Exponents 1. 3 Fractional Exponents A. nth root of a Positive Number B. Fractional Exponents 1. 4 Comparing Exponents 1. 5 Scientific Notation A. Representation of Very Small or Very Large Numbers B. Computation 1. 6 Rounding Numbers to a Specified Number of Significant Figures 1. 7 Estimations and

Dimensions Math® Textbook 8A

Chapter 1: Exponents and Scientific Notation

1.1 Positive Exponents and the Laws of Exponents
1.2 Zero and Negative Integer Exponents 
1.3 Fractional Exponents

A. nth root of a Positive Number
B. Fractional Exponents

1.4 Comparing Exponents
1.5 Scientific Notation

A. Representation of Very Small or Very Large Numbers
B. Computation

1.6 Rounding Numbers to a Specified Number of Significant Figures
1.7 Estimations and Accuracy of Calculators

A. Estimations
B. Estimation and Irrational Numbers
C. Accuracy in Calculators

In a Nutshell 
Review Exercise 1 
Extend Your Learning Curve
Write In Your Journal

Chapter 2: Linear Equations in Two Variables

2.1 Linear Equations in Two Variables

A. Review of Linear Equations in One Variable
B. Meaning of Linear Equations in Two Variables

2.2 Solving Simultaneous Linear Equations in Two Variables using the Graphical Method
2.3 Solving Simultaneous Linear Equations in Two Variables using the Substitution Method 
2.4 Solving Simultaneous Linear Equations in Two Variables using the Elimination Method 
2.5 Solving Problems using Simultaneous Equations

In A Nutshell
Review Exercise 2
Extend Your Learning Curve
Write In Your Journal

Chapter 3: Expansion and Factorization of Algebraic Expressions

3.1 Expansion of the Products of Algebraic Expressions

A. Product of Single Terms
B. Product of Two Expressions

3.2 Special Products More Properties of Inequalities
3.3 Factorization by using Special Products of Algebraic Expressions

In A Nutshell
Review Exercise 3
Extend Your Learning Curve
Write In Your Journal

Chapter 4: Quadratic Factorization and Equations

4.1 Factorization of ax2 + bx +c

A. x2 + bx + c
B. ax2 + bx + c

4.2 Solving Quadratic Equations by Factorization
4.3 Problem Solving Involving Quadratic Equations

In A Nutshell
Review Exercise 4
Extend Your Learning Curve
Write In Your Journal

Chapter 5: Simple Algebraic Fractions

5.1 Simplifying Simple Algebraic Fractions
5.2 Multiplication and Division of Algebraic Fractions
5.3 Addition and Subtraction of Algebraic Fractions
5.4 Fractional Equations

A. Solving Equations Involving Algebraic Fractions
B. Problem Solving Involving Fractional Equations

5.5 More about Formulas

A. Finding the Value of an Unknown Quantity in a Formula
B. Changing the Subject of a Formula

In A Nutshell
Review Exercise 5
Extend Your Learning Curve
Write In Your Journal

Chapter 6: Congruence and Reflections

6.1 Congruence and Reflections

A. Congruent Figures
B. Reflections

6.2 Translations, Rotations and Combining Transformations

A. Translations
B. Rotations
C. Combining Transformations

6.3 Similarity
6.4 Enlargements and Similarity

A. Scale Factors
B. Enlargements

In A Nutshell
Review Exercise 6
Extend Your Learning Curve
Write In Your Journal

Chapter 7: Parallel Lines and Angles in Triangles and Polygons

7.1 Angles formed by Parallel Lines and Transversals

A. Angle Properties
B. Parallel Lines and Transversals

7.2 Interior and Exterior Angles of a Triangle

A. Angle Sum of a Triangle
B. Exterior Angle of a Triangle

7.3 Angles Properties of Special Quadrilaterals
7.4 Polygons

A. Types of Polygons
B. Sum of Interior Angels of a Polygons
C. Sum of Exterior Angels of a Polygons

In A Nutshell
Review Exercise 7
Extend Your Learning Curve
Write In Your Journal

Answers 

Click here to view Dimensions Math® Textbook 8A samples.

Dimensions Math® G6-8 Textbooks are designed for middle school students. Developed in collaboration between Star Publishing and Singapore Math Inc®, this series follows the Singapore Mathematics Framework and covers the topics in the Common Core State Standards.

The emphasis of this series is on empowering the students to learn mathematics effectively and independently. Depending on the topics covered, different approaches are adopted for the presentation of concepts to facilitate easy understanding by students to internalize concepts and instill in them an interest to explore the topics further.

Each book includes appropriate examples, class activities and diagrams to understand the concepts and apply them. IT skills and values are incorporated as appropriate.

Some features of this series include the following:

  1. Class activities which allow the student to learn mathematics through discovery. Some of the class activities make use of Geometer’s Sketchpad (available at keypress.com).
  2. Worked examples are followed by a similar question (Try It!) so that students can check if they have understood the concepts presented earlier.
  3. An exercise for each lesson including questions in the following sequence:
    • Basic Practice (simple questions involving a direct application of the concepts)
    • Further Practice (more challenging questions on direct application)
    • Maths@Work (questions that apply mathematical concepts to real-life situations)
    • Brainworks (questions involving higher order thinking or an open-ended approach to problems)
  4. Each chapter is followed by a review exercise; the Extend Your Learning Curve activity encourages students to explore mathematical concepts further or apply mathematics in real-life situations, with some questions requiring sentence or paragraph answers to encourage students to reflect on their learning experiences.
  5. The right margins contain remarks on important information, concepts or definitions covered earlier related to the current material to help students recall them, discussion questions, interesting puzzles or facts that are related to mathematics, and some website references.

The answer key at the back of the book provides answers to the Try It! and the problems in the exercises for the Basic PracticeFurther Practice, and Maths@Work questions. It does not include answers to the class activities or the Extend Your Learning Curve activities. 

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SKU: 84464257261

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4.3 ★★★★★
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Sandor Clegane
Massapequa, US
★★★★★ 5
Terrific Gift - With One Big Catch
Format: Hardcover
There's one thing that you really need to know about this book before ordering. And by all means, you should definitely order it if you or someone that you love is a fan of Gravity Falls. I watch the show with our Daughter, who also happens to be a diehard Bill Cipher fan. And she absolutely loves this book, it made her so happy to get it as a Christmas present. It's visually amazing, awesome illustrations, good colors. Just full of cool stuff that will appeal to any fan of the show. But, there's one catch..... A good portion of the book includes writing that's in cursive. Back in 2010, Common Core led to most states dropping requirements for students to learn writing in cursive. In the years that followed, about half of the states in America changed their tune. But it's entirely possible that you live in a state that doesn't require it to be taught in public schools. So if your child doesn't know how to read cursive, there's going to be parts of the book that they simply can't read. But even if they can, there are also parts of the book in which the writing is very small, or the graphics look almost pixelated and slightly fuzzy. Which still makes certain parts a little difficult to read. That said, should you still buy the book? 100% yes, because that doesn't really make a huge difference on whomever you are gifting it to. It's just something worth noting before anyone orders it. Our Daughter couldn't be happier, having received this as a present. We already had the Book of Bill, and this one is a welcome addition to her home library.
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Reviewed in the United States on December 27, 2025
E
Verified Purchase
Elak Swindell
Carnegie, US
★★★★★ 5
Gravity Falls Fans, Your Time Has Come With This Excellent Book
Format: Hardcover
'Gravity Falls' was one of the best animated series to be created on the Disney Channel, where the majority of shows are trash IMO. The humor, voice acting, writing, animation and mythology were all perfect. Very much like a kids version of The X-Files, but not dumbed down and still very adult in many ways. Dipper's Journal 3 was something I've always desired to see become an actual bookshelf tome and now fans, like myself, have it in this extremely awesome book. All the pages shown throughout the series are there, as well as those that were never seen or hinted at, and a large section supposedly added by Dipper and Mabel. One of the best features that caught me by surprise were the front and rear covers. Normally, a book with a dust jacket like this has a neutral plain one color cover to it under the removable jacket. Not this baby! It looks just like the jacket, just without the logos. Really, you don't even need the jacket, but it does protect the beauty of the real covers. Even better, the publisher went a step further by adding a treat to fans on the inside of the dust jacket. Blueprint forms of the Memory Gun, Gideonbot, The Portal, Laptop and Sea Monster submersible. I never expected that since 98% of them are just white on the inside. Another wonderful addition is the sewn in cloth bookmark. You know a hardcover is well made when they have one of these. Shows the publisher spent time to make it worth having and enjoying. I'm not going to talk about the interior pages, since they are all fantastic. Just get the book and have a great time with it. Now, there are two things missing that should have been included, and technically would have dropped my rating to four stars, but the book is still five nonetheless. It is missing a cryptogram decoder page and a foldout poster of the full Bill Cipher cryptogram map Dipper and Mabel had to put together using all three journals. There is a decoder on-line, but having it in the book should have been a no-brainer addition since every page has codes to decipher. Writing wise, the only minor thing that bugs me is with the misuse of commas, or the lack of, where they should be at times. For example, when describing three things - blue, red and green - Rob Renzetti has a tendency to do like a LOT of people have started up over the last decade or so in putting a comma after the second word 'red' when it doesn't belong there. Yes, I'm being a grammar nitpick, but it really gets annoying after awhile. These elements are minor and the amount of excellent artwork and information contained within the book make up for missing items and writing issues. It's a shame the 'Special Limited Edition' version with blacklight ink pages, removable images/notes and a magnifying glass is so extremely expensive. Instead of two books, there should have been just one with all of the goodies. This is a must have for all Gravity Falls fans. Don't miss it.
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Reviewed in the United States on April 16, 2018
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Jose
Port Orchard, US
★★★★★ 5
fun book
Format: Hardcover
of course this was great! fun to read. son loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
E
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Erin
Belleville, US
★★★★★ 5
It's so good
Format: Hardcover
This book was amazing! The readability was great and I cannot wait to get the others
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
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Verified Purchase
Kaitlin Stuart
Lexington, US
★★★★★ 4
For the nerds
Format: Hardcover
As a huge gravity falls fan I can say this book does not disappoint. It’s very well detailed and fits exactly like the show. I just wish it was black light activated like in the show
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026

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