| In today’s society,the information technology has been developing rapidly,along with the network permeating in various fields gradually,network and multimedia in the field of education also play an increasingly important role,appeared a variety of new learning related to computer network teaching modes,such as flipped classroom teaching mode.Micro-video as the main form of learning resources in flipped classroom plays an important role.Nowadays,researchers have more and more researches on micro-course development design and application,but the research on the specific link of micro-video teaching design needs to be further deepened.Micro-video are generally shorter,but the teaching process of the structure should be completed,including lead-in link,new class teaching,summary,etc.The lead-in link of micro-video also has the important role of creating learning situation,focusing students’ attention and stimulating learners’ learning motivation.In order to understand the attitude of high school students to lead-in link of high school biology micro-video,the author carried out a questionnaire survey with high school students.The survey showed that students think lead-in link is very necessary for micro-video,and it is important to stimulate interest in learning and motivation to learn,to narrow the relationship between teachers and students,to deepen the impression to enhance memory and inspire thinking.Students’ preferring way of lead-in link is experiment,teaching aids and biological history;98% students think the sound and picture design have a greater impact on the import effect.Through the investigation of students,the students’ recognition of lead-in link in micro-video of High School Biology and the demand of students for lead-in link in micro-video were clarified,which provided the basis for the specific case evaluation and analysis,and also provided the basis for the high school biology teacher to design and production lead-in link in micro-video.This paper elaborated the meaning,function,mode and principle of leading-in in biology micro-video according to the results of the survey and the characteristics of biology in senior high school.At the same time,according to the characteristics,function,and principle of leading-in in biology micro-video,the author also designed the teacher-using evaluation scale and student-using evaluation scale for the design of the lead-in link in the micro-video,in order to evaluate the design of the lead-in link in micro-video objectively and comprehensively.In order to further clarify the current situation of lead-in link design and application in high school biology micro-video in China,the fourth entry of China Micro-video competition and some specific cases were selected as the analysis objects.According to teachers’ and students’ evaluation,the author analyzed the specific cases in content,process and effect.Counted the fourth entry of China Micro-video competition about high school biology in the way and time of lead-in link,and summarized the existing problems in lead-in link in micro-video of High School Biology,those problems including neglecting the lead-in link,leading-in too long,over-pursuing the form and making light of design and so on.Based on the theoretical study and case analysis,according to the existing problems,the author suggests that teachers should attach importance to the lead-in link in micro-video,focus on students,improve students’ core quality of biology,improve the effect of lead-in link in micro-video by using effective language and screen design,etc.This study will provide some reference for the biological teachers in designing and evaluating lead-in link in micro-video of High School Biology. |