Math Kit I (PreK-G3)K01 DL5 0408: Math Kit I The complete Montessori based math kit parents and educators are raving about! Includes all the books, music, and manipulatives everything you need for pre k through 3rd grade, plus lifetime consumable replacement. With the Kit I download option, one kit works for the whole family without anything else to purchase. Over $600 if purchased separately. Math Kit I includes: Lesson Books 1, 2, and 3 with 12 Diagnostic Tests (See