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| | Four - Pan Algebra Balance Item number LER7545.
Regularly stocked item. Usually ships within 24 to 48 hours.
UPC 0765023075458
Learning Resources
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recommended for | |
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grades 6 to 11 | |
ages 11 to 17 | |
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list price $54.99 our price $43.44 savings $11.55 (21%) |
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Unlike any other balance, this one makes it possible to physically show that - 1 is less than 0. Weights placed on the outer pans represent negative integers and those placed in the inner pans represent positive integers. When you place a weight in each pan on one side of the center post, the balance remains level as ( - 1) + (+1) = 0. Great for small group work, the balance comes with two plastic pans, four plastic canisters, a set of plastic weights and a Teacher's Booklet. Some assembly required. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs. |
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