| Nowadays,we are in a time that information technology developing in a rapid speed.The rapid development of e-book bags,flipped classroom,blended learning and MOOCs has promoted the transformation of teaching mode and learning mode,it also ushered in the wave of educational informationization and the appearing of various educational resources.As a major learning resource,micro-video can satisfy the learner's fragmented learning needs since its features is short and precise,and it is also convenience to transmit and storage.Therefore,micro-video has favored by educators and learners,and got high attention in basic education.The development of micro-video in the field of education has also experienced three stages,the first one is resource composition,the second one is teaching process,and the third one is online course,now it has matured.However,there is no denying that teaching micro-video still have some problems in design and applications that cannot be ignored,such as clue problems in micro-video,information presentation mode,and learning interaction mode,all of this need further research.The purpose of this dissertation is to explore the issues related to the best presentation of subtitles in different knowledge teaching micro-video,by using questionnaire survey method and experimental method.This study select junior high school learners as participant,sort out knowledge into two types,mainly to explore the influence of teaching micro-video with three subtitles on students' learning effect,so that to seek the best subtitle presentation mode,then put forward some relevant suggestions for the design and production of subtitle in teaching micro-video.The three subtitle presentation mode in this study include full subtitles,keyword subtitles and full subtitles + keyword subtitles.Full subtitles refers to the text information that appears at the bottom of the video,and synchronize and correspond with the teacher's voice.The keyword subtitle refers to the text information that appears at the bottom of the video,and synchronize and correspond with the key points,difficulties,and knowledge points of teacher's voice.Full subtitles + keyword subtitles refers to the text information that appears at the bottom of the video,and synchronize and correspond with the teacher's voice,at the same time show the key points,difficulties,and knowledge points of teacher's voice by change the color or enlarge some word.There are two experiments in this study.Experiment 1 is the study of the influence of declarative knowledge micro-video with different subtitles on learning effects.It mainly explores the influence of subtitle presentation modes in declarative knowledge on learners' academic performance and cognitive load.Experiment 2 is the study of the influence of procedural knowledge micro-video with different subtitles on learning effects.It mainly explores the influence of subtitle presentation modes in procedural knowledge on learners' academic performance and cognitive load on learners.Considering the learner's learning style may have influence on learning,so put learning style as a variable to make distinctive examination.Using SPSS to make multi-factor analysis of variance,one factor analysis of variance,independent-sample t test and LSD test,main conclusions are as follow:(1)In the teaching of declarative knowledge micro-video,for learning effect,there are significant interaction between subtitle presentation mode and learning style(PF<=001.0,456.13).Subtitle presentation mode has great influence on the visual style learner's academic performance(PF<=001.0,768.20),and the keyword subtitle is best.For the verbal style learners,there is no distinct difference in academic performance(PF>==05.0517.0,662.0),but from the average score of their performance,learning full + keyword subtitles micro-video is better than others.(2)In the teaching of procedural knowledge micro-video,for learning effect,there also have significant interaction between subtitle presentation mode and learning style(PF<==05.0043.0,181.3).Subtitle presentation mode has great influence on visual style learners(PF<=001.0,999.9),and the influence on verbal style learners is small(PF>==05.0793.0,232.0),but for both styles of learners,keyword subtitle is best.(3)In declarative knowledge or procedural knowledge micro-video,for cognitive load,there have no significant interaction between subtitle presentation mode and learning style(PP>=>=05.0735.0,05.0605.0),subtitle presentation mode(PP>=>=05.0235.0,05.0709.0)and learning style(PP>=>=05.0362.0,05.0614.0)have no main effect on student's cognitive load.Combining the results of this study and some relevant literatures,the writer make a summary and reflection,and put forward some suggestions for the design and development of micro-video and application in teaching:(1)The design and development of micro-video need consider knowledge types.(2)Subtitle presentation mode need depend on learning style.(3)Teaching and learning method under multimedia environment need consider learning style. |
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