- Use these plastic base ten manipulatives to engage students in concrete demonstrations of place value and base ten concepts. This complete set is sufficient to supply a class of 20-25 students. Durable plastic creates a long-lasting learning tool that helps students understand math concepts in a physical way. Designed with the entire class in mind, with 600 individual units, 200 rods, 20 flats, three cubes, a 112-page Base Ten Revised Book (LER 4296), Teaching Notes and box for organized storage. Blue. Games/Manipulatives Type: Math Manipulative; Age Recommendation: Grade 1+. -

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