I hope those schools read this thread. I want them to stop fooling people. Because they think it is not a loss when they just ask people to do DEMOs. Yes, it is definitely a waste of time and money. Because teachers will need to spend on gas and transportation. Sometimes, they need to print the materials. It sounds like not too much. But, how about 100 demos? It is a loss specially when they don’t hire people, but still record their materials.
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