Tabla de Contenidos: “…PREFACE; CONTENTS; FIGURES; SUMMARY; ACKNOWLEDGMENTS; RAND MATHEMATICS STUDY PANEL AND RAND STAFF; Chapter One INTRODUCTION; GOALS AND EXPECTATIONS; CHALLENGES AND CONFLICTS; RESEARCH KNOWLEDGE NEEDED TO MEET CURRENT NEEDS; A PROGRAM OF RESEARCH AND DEVELOPMENT IN MATHEMATICS EDUCATION; FOCUS AREAS OF THE PROPOSED PROGRAM; PROGRAM GOALS; FOUNDATIONAL ISSUES; ORGANIZATION OF THIS REPORT; Chapter Two TEACHERS' MATHEMATICAL KNOWLEDGE: ITS DEVELOPMENT AND USE IN TEACHING; BENEFITS OF A FOCUS ON MATHEMATICAL RESOURCES FOR TEACHING; WHAT DO WE NEED TO KNOW ABOUT MATHEMATICAL KNOWLEDGE FOR TEACHING?…”