design calculation of bearing capacity of eccentric compression members concept and calculation features of prestressed concrete structures calculation principle of probability limit state design method 1.4.3 Solutions to emphases and difficulties This course can be divided into two sections as basic theory and engineering application.Due to the abstract basic theory part,the practical highlight of engineering application part,and few actual lesson,solutions to emphases and difficulties are applied in the course content and teaching as follows: 1 Preview and guidance,emphases and breakthrough For the emphases and difficulties,in order for purposive and targeted preview,some preview and guidance and pose of questions before explaining the course are necessary.Teaching of emphases and difficulties should be appropriately slowed down,and also the review questions are necessary.After class,students are mainly required to make the summary and conclusion in the review.In order to help students to eamn,summary,emphases,conclusion,key and difficult points of each chapter and common questions should be concluded in each chapter notes. 2Making full use of the network teaching resources,carrying out the traditional and multimedia teaching Combination method of the traditional chalk and writing with self-made PPT course are used for classroom teaching.As for the outline content and time-consuming rendering graphics,they should be previously made through courseware,and for the formula part that must be mastered,it is still be taught through traditional teaching methods.If students encounter some problems or miss notes in class,they can review PPT and online courses for further study. Using multiple teaching methods to improve students'self-study ability To emphasize the teaching of heuristic and discussion and strengthen the interaction between teachers and students,to construct the independent teaching mode of "Teacher is Guidance,Student is the Main Body and Ability Training is the Main Line"to improve the students'self-study ability