This site from Mount Holyoke College helps students recognize, evaluate, and use forms of quantitative argument. The course introduces basic concepts from statistics and calculus through three case studies: witchcraft in seventeenth-century New England; education, occupation, salary, gender, race, and ethnicity in the United States; and global population and resources. Using real data in a computer laboratory, students observe and summarize relationships, formulate and test hypotheses, and study connections among hypotheses, formal models, predictions, and actual results.