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But the information entered is wrong. The reason why Math and Science Education can't log in is that the input information is wrong, so you need to fill in the correct information and log in again. Mathematical Education Network is a resource-rich and cost-effective primary and secondary education resource station, which provides free downloads of courseware, lesson plans and lesson plans for junior and senior high schools, teaching videos, courseware and lesson plans for theme class meetings, and guidance on learning methods.