This lot includes the Math-U-See Delta Textbook and DVD Instruction Manual, perfect for homeschooling students interested in mathematics. The curriculum set features a hardcover book and DVD, both in English language, published in 2012 by Demme. The author, Math-U-See, is an expert in homeschooling and mathematics, making this curriculum set a valuable resource for parents and students alike. The set is categorized under Study Guides & Test Prep, Textbooks, Education & Reference, and Books & Magazines. It is designed for homeschooling students who are interested in mathematics and looking for a comprehensive curriculum set. The publication name, Math-U-See, is well-known for its high-quality homeschooling curricula, and this set is no exception.