Preface; EXPERT COMMENTARY: Why Do We Lose Physics Students?; RESEARCH AND REVIEW STUDIES: A Numerical Landscape; Learning in and from Science Laboratories -- Enchancing Students' Meta-cognition and Argumentation Skills; The Crisis in Science Education and the Need to Enculturate All Learners in Science; Understanding Student Affect in Learning Mathematics; The Challenge of Using the Multimodal Aspects of Informal Sources of Science Learning in the Context of Formal Education; Understanding Scientific Evidence and the Data Collection Process -- Explorations of Why, Who, When, What, and How; Constructivist-Informed Classroom Teaching -- The Importance and Potential of Motivation Research; Oral Communication Competencies in the Science Classroom and the Scientific Workplace; Supporting Future Teachers Learning to Teach Through an Integrated Model of Mentoring; Strategies to Address Issues and Challenges Faced by Instructors in General Education Introductory Astronomy Courses for Non-Science Majors; Getting it to Work -- A Case of Success in Sustaining Science Professional Development; Index.