Research On The Application Strategy Of Micro-courses In The Teaching Of Mathematics Geometry In Junior High Schools

The "Education Informatization 2.0 Action Plan" clearly pointed out that "the development and service capabilities of digital education resources are insufficient,and the deep integration of information technology and subject teaching is insufficient".The Mathematics Curriculum Standards for Compulsory Education(2011 Edition)states that"modern information technology is used as a powerful tool for students to learn mathematics and solve problems,effectively improving the way they teach and learn.""With its characteristics of short and concise,easy to spread,micro-lectures have quickly become the focus of information technology infiltration education and teaching." But "how to effectively implement the application of micro-lessons in teaching?" "It has become a major teaching problem for mathematics teachers in today’s era.The integration and application of micro-lectures and junior high school mathematics geometry teaching also has the above outstanding problems.This research focuses on the application of micro-lectures in the teaching of mathematical geometry in junior high schools,integrates various research methods,and carries out theoretical and practical research.In terms of theory,first of all,through literature research,the application of micro-lessons and the application of micro-lessons in the teaching of mathematics geometry in junior high schools are reviewed,and two main research questions are proposed:(1)How to apply micro-lessons in junior high school geometry classrooms?(2)Is the application strategy of micro-lessons effective in the teaching of mathematics geometry in junior high schools? Secondly,based on the application of Van Hill’s theory,according to the logical order of "playing before the micro-lesson→ playing the micro-lesson → playing the micro-lesson after the micro-lesson",the application strategy of the micro-lesson in the teaching of mathematics geometry in junior high school is proposed:(1)task guidance strategy;(2)problem-driven strategy;(3)creation of blank retention strategy;(4)timely comment strategy.In terms of practice,the fourth chapter of the seventh grade book "New Ideas mathematics" of the junior high school reader "New Ideas in Mathematics" is the experimental content,the teaching experimental method is the mainstay,combined with questionnaire surveys,interviews and other methods,the comparative experimental research on the effectiveness of micro-lesson application strategies and junior high school geometry teaching in two classes of a junior high school is carried out.Among them,the experimental class adopts micro-lesson teaching based on the application strategy of geometry micro-lessons,and the control class does not use any micro-lesson application strategies for micro-lesson teaching.The results show that the micro-lesson teaching that integrates the application strategies of geometry micro-lessons can significantly improve students’ mathematical learning performance,but also have a positive impact on comprehension ability,problem-solving ability,learning style,thinking level,emotional attitude and mathematical cognitive belief.This paper focuses on practical application in order to provide a certain reference for the practical application of micro-lectures in the teaching of mathematics geometry in junior high schools in the future.