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Spectrum Critical Thinking for Math helps fourth graders improve problem-solving skills
Good Housekeeping Best Toy Awards 2011
Spectrum offers a variety of subject-specific practice to reinforce classroom learning
geometric shapes
Sand Timer 2 Minute Medium jumbo bolts and nuts Spectrum Critical Thinking for MathSand Timer 2 Minute Medium Description Race to see how much can be accomplished before time runs out. Great for games, timed tests, and time management. Timer measures 2 1 2" x 5". WARNING: CHOKING HAZARD Small Parts. Not for children under 3 yrs.
