Great Prof. Off to a stellar start.! A joy to hear her lectures. So much fun. She's organized, she's clear, she's focused, she's kind. Energetic, funny, smart. Required to buy webapp (Cengage/Pearson $120) but NOT the book. TI-83/4 is max allow on exams ( w/her b4 buy /rent). Uploads practice tests w/keys for Exams(4 +Final) & Quizzes(5) EC