At times wildly funny, always thought-provoking, this lecture provides insight into some of the central problems in teaching and learning calculus. Although such student foibles as \(f(x+y)=f(x)+f(y)\) make Novikoff want to "sue in the World Court," he also has great sympathy for the genuine confusion students feel when confronted with supposedly clear mathematical explanations that actually obscure the basic ideas of the subject. Presenting a smorgasbord of specific examples, Novikoff builds his basic point: mathematics makes sense, but textbooks and teachers often don't. His examples not only can help teachers of calculus improve their presentations of particular topics, but also reflect a teaching philosophy that emphasizes responding to students, what they know and what they don't, what makes sense to them and what doesn't. Anyone who teaches mathematics will appreciate this engaging and insightful lecture.