This is the first of four volumes of books designed to help the eager middle or high school student to Master Competition Mathematics. The problems in the book are curated from actual competition problems from various high school mathematics tournaments in Georgia from the years 1987 to 2020. Each chapter includes expository remarks, important problem-solving techniques, theorems, and formulas, with examples and exercises. These are followed by extensive problem sets in each chapter, divided into Junior Varsity and Varsity problems. This book contains 1520 problems in six chapters: 1) Polynomials, 2) Functions, 3) Logarithms and Exponentials, 4) Complex numbers, 5) Inequalities, and 6) Analytic Geometry. Chapters 7 through 12 contain full solutions to all the problems.