Overview

Most ACT math books teach shortcuts. This one teaches students how to think. Dr. Timothy Chae is a former university professor and Math and Statistics specialist who reveals a proven method for raising standardized test scores without endless memorization or gimmicks. After decades of teaching and research, Dr. Chae uncovered the real reason even straight A students underperform on exams like the ACT, SAT, PSAT, GRE, and GMAT. The problem is not intelligence. It is how math is learned and how test thinking is trained. Dr. Chae has coached AMC competition students and served as a statistical consultant for U.S. Department of Education funded research projects. His ACT Math series is built on solid research, real classroom results, and over 20 years of university level teaching experience. This book does not rely on tricks that stop working under pressure. It builds the exact skills the ACT actually tests: Critical reasoning and logical thinking Strong foundations in algebra and geometry Data analysis and mathematical modeling Speed, accuracy, and confidence under time pressure Parents and students choose this series because it produces real, lasting improvement, not short term score bumps. Inside this book, you will find: High impact ACT question types that appear again and again Step by step methods that eliminate careless mistakes A structured practice system that builds mastery fast Clear thinking frameworks that transfer beyond the ACT If you are serious about raising your ACT Math score and building real math power that lasts beyond test day, this book was written for you. - Table of Contents - Chapter 1 Introduction: Overview of the ACT Comparison of the ACT and SAT ACT Math Content and Weight Chapter 2 Pre-Algebra Learning Objectives Whole Numbers and Integers Fraction Operations Ratios and Proportions Absolute Value Exponents and Radicals Estimation and Rounding Pre-Algebra EXERCISES Pre-Algebra EXPLANATIONS, ANSWERS Chapter 3 Elementary Algebra Learning Objectives Linear Equations Inequalities Absolute Value Equations Factoring Word Problems: Step-by-Step Strategy Elementary Algebra EXERCISES Chapter 4 Intermediate Algebra Learning Objectives Quadratic Equations Polynomials Rational Expressions Systems of Equations Functions Complex Numbers Logarithms Sequences and Number Series Unit Conversions Matrices Intermediate Algebra EXERCISES Chapter 5 Coordinate Geometry Learning Objectives Graphing Lines and Parabolas Distance between Two Points Midpoint of a Segment Circle Equations Conic Sections Coordinate Geometry EXERCISES Chapter 6 Plane Geometry, Trigonometry Learning Objectives Triangle Area Pythagorean Theorem Rectangle Area and Perimeter Circle Area and Circumference Volume and Surface Area of 3D Shapes Trigonometric Ratios Unit Circle Graphs of Basic Trigonometric Functions Standard Forms of Trigonometric Functions Trigonometric Identities Plane Geometry, Trigonometry EXERCISES Chapter 7 Statistics & Probability Learning Objectives Mean, Median, Mode Standard Deviation Data Interpretation Probability Permutations and Combinations Statistics, Probability EXERCISES Chapter 8 Four ACT Practice Tests Category and Difficulty Classification Practice Test, Answers and Explanations ACT Score Conversion Table

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