Kit I is intended for ages 4-8, and is a complete math program for 5 years of instruction. Remember, the child sets the pace, so it can take more or less than 5 years to complete the contents of this kit. The kit includes Lesson Books 1-3, Answer Guides 1-3, Parent Guide, Volume I CD, 4” yellow foam ball, nylon bag with string tie, geared clock, assorted plastic U.S. coins, 8 crayon set, 2 standard dice, 1- and 2-cup measurers, safety mirror for symmetry work, 22”x34” cloth work mat, 3-ring binder, 0-9 set of wooden dominoes, pan balance for weight comparison, thousand cubes, set of plastic operation signs, complete number card set w/ wooden tray, base ten set, materials bank wooden tray, shape tiles, number tile set.