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Hands-on math kit to teach LCM, GCF, prime numbers, fractions, ratios, area and volume. Contents: two books: Factor City; teacher's resource book and Discovering Greatest Common Factor and Least Common Multiple; ETA/Cuisenaire 'Hand-It-Up' Management System; and ten basic sets (zippered pouch containing 15 different types of Factor Blocks for a total of 33). Computation and Estimation. Lesson plans. | |