Offering a more robust WebAssign course, Stewart's CALCULUS: CONCEPTS AND CONTEXTS, Enhanced Edition, 4th Edition, offers a streamlined approach to teaching calculus, focusing on major concepts and supporting those with precise definitions, patient explanations, and carefully graded problems. CALCULUS: CONCEPTS AND CONTEXTS is highly regarded because this text offers a balance of theory and conceptual work to satisfy more progressive programs as well as those who are more comfortable teaching in a more traditional fashion.