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They are really cool videos. As a suggestion, I would end up with an image of a resume of the concepts or the functions you just talked about. Students could stop and copy those great useful functions and try to use them after. Please keep on...
Hi, this is Eddy, math teacher in a high school in Spain. So first of all, sorry ( in advance) for my possible grammar mistakes. I just registered at the CBM and I found this great post. Before saying anything I have a main question. It may sound...