Super absorbent pads, specially treated for the ultimate destruction of 10% Neutral Buffered Formalin and eliminate their harmful vapors. The blue color makes an excellent background for grossing tissue. Six rolls of 55 sheets per case.
Number, Measurement and Space, module establishes equivalence of sets by a one-to-one exchange of objects. Eg Upsetting equivalance (destroying conservation of numbers) by adding one object to a set, or taking one away, helps introduce vocabulary for comparing quantity
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