Yes, seeing is indeed believing.
With teaching aids, the boys were able to use their sense of sight and touch to appreciate our body systems as it unfolds layer by layer in front of their eyes. It is pretty obvious now how the skeletal system protects the organs, how food passes from one part of the digestive system to another, what the circulatory system does, how the lungs really look like in 3-dimentional form and no, those were not boobs..
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