Research On The Design And Practice Of Biology Micro-course In Senior High School Based On ADDIE Model

Micro-course is a short-term teaching video course with complete teaching links for a specific knowledge point through specific teaching analysis.As one of the important resources to promote the digitization of education,micro-course has the characteristics of vivid,intuitive,short and concise,and convenient access,which can enable students to obtain a focused learning experience anytime and anywhere.The literature and survey analysis show that the existing micro-course resources in China cannot meet the needs of education digitization,the micro-course production technology and experience of high school teachers are insufficient,and the systematic general framework and evaluation method of micro-course design and development still need to be further studied.As a teaching system design model,the ADDIE model includes analysis,design,development,implementation and evaluation.This study takes ADDIE model as the main theoretical basis,constructivism theory,cognitive load theory and multimedia learning theory as theoretical guidance,and combines students’ learning conditions and characteristics of biology disciplines to build an overall model of design of high school biology micro-course on ADDIE model,and summarizes the principles to be followed in the design and development of micro-course.The design and production of high school biology five micro-course cases,respectively: "cell living environment","immune system function","specific immunity","allergic reaction","type of succession".The research on the teaching practice of integrating the micro-course designed by the ADDIE overall model into the high school biology classroom shows that the high school biology micro-course designed by the ADDIE overall model can effectively optimize the classroom teaching efficiency,which is mainly reflected in the following aspects: the micro-course can stimulate students’ interest in learning,enhance students’ learning initiative,focus on biological concepts,overcome teaching difficulties,improve students’ ability to summarize,exercise students’ scientific thinking,and promote the development of students’ core literacy.At the same time,students and teachers have a high acceptance of the high school biology micro-course designed by the ADDIE overall model.The overall model of high school biology micro-course design based on ADDIE model is feasible from the theoretical level,technical level and practical level.The use of ADDIE mode to guide the design and production of micro-course cases into the teaching process has played a synergistic role.