right way to describe 1. Explain why-2-4 is the same as 2 * 4 without just...

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right way" to describe 1. Explain why-2-4 is the same as 2 * 4 without just saying "a negative times a negative equals a positive." Use manipulatives to demonstrate this rule if you must use it, but make sure you are not assuming the rule in order to prove the rule (this would be circular logic, and is a form of invalid reasoning.) right way" to describe 1. Explain why-2-4 is the same as 2 * 4 without just saying "a negative times a negative equals a positive." Use manipulatives to demonstrate this rule if you must use it, but make sure you are not assuming the rule in order to prove the rule (this would be circular logic, and is a form of invalid reasoning.)