Why was Physical Education incorporated into school curriculum?

Science Education: How important is dissection in middle school curriculum?

• Our K-8 school does not do animal dissection in science; it teaches and tests via diagramming. I wonder if the lack of hands-on experience is going to impact my children's high-school science readiness.

• Answer:

  Is basic knowledge of dissection important for a student to survive in society? In high school science? Maybe. In life? Not. With the recent discovery of a breakthrough called http://io9.com/scientists-can-now-turn-brains-invisible-472151410, it is now possible to remove lipids and turn neurons transparent. This can even be applied to other body parts as well and is being heralded as an important advancement in biological research. By the use of this technology, we can effectively turn the outer lipid layers transparent (that is an euphemism for removing them without affecting the placement of associated cells). This is a significant development over dissection as dissection only provided a 2D section for viewing whereas now 3D imaging will become a possibility with microscopes. Currently, the only significant downside is that this technology requires over a month to turn even a small mouse brain transparent, let alone the more massive human tissues. But with time, alternates will surely be found. Baseline: Dissection in real-life has run its courses. Now, it'll only be taught in schools.