Lumbar disc pain can not be under the bed, what physical therapy can ease it
"This is a common problem, it is worthy of physics teachers and students seriously study. Here we come to listen to Tsinghua University secondary school network of teachers on how to learn high school physics some
In the high school science subjects, the physics is relatively difficult to learn a section, learned most of the high school physics students, especially in the physical performance of poor students, there is always such a question: "class hear, hear Clear, that is, in the class to do the question will not.
suggestions: first analyze the students raised the general question, that is why the class can understand, and the class will not be made I have such a sense of physical education as a teacher of science
