| Grade one is a critical stage for junior high school students in adapt to the stateof the high school. This stage of learning effect will directly influence and evendetermine the whole high school studies. Especially for such as physics, mathematics,with particular emphasis on the logic continuity of disciplines, if you can’t learn, inthe beginning stage after falling, due to the high school nervous learning taskarrangement, it will be hard to have time and opportunity to catch up with, whichleads to a vicious cycle of more and more don’t understand. And in order to do a goodjob in cohesion and adapt to the high material usually arrange learning content isrelatively easy to learn. So in this case, will everyone of the students in grade one asmuch as we expected, can learn well? Is the use of class time efficient? Is there anyinefficient or invalid time? What are they doing when they do not learn?With these problems, the author used the teaching internship opportunities in tworegular classes of2013in a key high school in Baoding city, conducted a survey to thestudents, and analyzes the results of the survey. Based on this, review of literatures,and combining previous research results and the author in the process of studyingexperience and teaching experience and thinking, put forward the "class invalidlearning time" this concept, define it as "in the process of teachers to the teachingmission organization, although students in the classroom, but didn’t follow theteacher’s way of thinking in learning, learn accordingly or while on the surface, butactually no harvest time", on the argument, analyses its causes, on the basis of thisputs forward the corresponding solution strategy, so as to get the followingconclusion:1, class invalid learning time is widespread in the regular class freshman year inhigh school, and for some students of the class total time is quite much.2, compared with the average status of other subjects, physics class learninginvalid phenomenon is more serious.3, the causes of the invalid physics class learning time is varied, mainly with theeducation system, class status, learning foundation, physics teachers, students and their parents are concerned, and alleviate and solve this problem also need fromthese aspects. |