Design And Development Of Micro-lecture From The Perspective Of Cognitive Load

With the continuous development of information technology,micro-lecture,because of its unique characteristics,has gradually become a hot issue of instructional resource design and development.However,there are some problems in such resources.For example,it lacks the theoretical guidance,the design process is unreasonable,the application mode is not appropriate etc.,and it even does not fully reflect and play the advantages of micro-lectures.Starting from the existing problems in the classroom teaching of Literature Information Retrieval,based on cognitive theory and multimedia learning theory,the design strategies on micro-lecture according to the principles of cognitive load are put forward in this dissertation,the micro-lectures are designed and developed to keep in line with the learners’ cognitive rules,and effectively plays the role in learners’ self-regulated learning.The micro-lecture design strategies from the three aspects of controlling the intrinsic cognitive load,reducing the extraneous cognitive load and increasing the Germane Cognitive Load are applied in the development of micro-lecture "Superstar Discovery" Database Usage.To verify the rationality of the design of micro-lecture,the experiment is carried out from four aspects: interview with teachers,interview with students,learners’ test scores and questionnaire.Research methods such as classroom observation,interview,literature analysis,comparative experiment and questionnaire were used.The results shows that the micro-lecture "Superstar Discovery" Database Usage promotes the teaching of Literature Information Retrieval,alleviates the load of teachers and students’ learning pressure,and improves the effect of teaching and learning.