I have a PhD in Cognitive Psychology from the University of Pennsylvania, where I researched statistical probability models of medical diagnosis. After that I worked for a small research and development company, leading projects focused on preventive health and automated cancer diagnosis. I've always felt comfortable with math and enjoy uncovering the ways that formulas and data interact. (read more)
...I am adept at breaking down difficult material into manageable sections and have a knack for making challenging concepts more easily understood. Over the years I have taught diverse science classes that include Biology (for majors and non-science majors), Microbiology, Human Genetics, Intro to A... (read more)
...Freelance writer of over a thousand test items used by states and testing agencies. Numerous awards for teaching excellencePlease get in touch with me and we will see if we are a good match. I think you'll find my subject knowledge and enthusiasm for science and learning will make me someone who can really help you.I have taught chemistry at all levels for three decades. (read more)
...Stephen also serves as a consultant for the College Board and the National Math and Science Initiative, leading workshops and student study sessions nationwide. Since 2015, Stephen has served as the Chair of the Science Department at Delaware County Christian School in Newtown Square, Pennsylva... (read more)
I am currently a Ph.D. student in Psychology at a major university, with a research focus on decision-making processes. I hold a B.A. in Cognitive Science and Philosophy from a highly selective liberal arts college, where I conducted research on generational differences in communication. In 2021, ... (read more)