Research Of Micro Course Instructional Design Based On First Principles Of Instruction For Junior High School Science

In recent years,as a kind of digital learning resources,a micro-course breaks through the space limitation of traditional teaching to a certain extent and promotes teaching reform.However,the application of the micro-course in primary and secondary school teaching has not been popularized because of the production of a micro-course.The most important thing is instructional design.At present,the instructional design of micro course lacks theoretical guidance,there are heavy forms of light content,and it is not easy to find teaching design templates that can be used for reference.Therefore,it is of practical significance to carry out research on teaching design of micro-course guided by instructional design principles.Professor Merrill's first principles of instruction provide the author with ideas for solving the above problems.As a prescription teaching theory,first principles of instruction is a instructional design theory focusing on the focus of the problem and effective teaching.This paper,under the guidance of first principles of instruction,combines the contents of the teaching content of the junior high school science teaching.The specific work is as follows:In this paper,literature review is used to review the research status of micro-course and its first principles of instruction.It includes research on educational theory including system science theory,refinement theory,and prior organizers;at the same time,it provides detailed information on the topics and theories of micro-course and the first principles of instruction.Discrimination.This paper designs the junior high school science micro course instructional design model based on the fifteen criteria of the five principle refinement of the first principles of instruction,the micro-course instructional design pattern,and the corrugated loop teaching design pattern.Based on this model,5 micro-course instructional design cases,such as density,pressure,water buoyancy,force interaction,and heat engine,were designed to record corresponding micro course.Taking material density instructional design as an example,instructional design includes content analysis,learner characteristics analysis,learning goal analysis,focus problem solving,teaching process,learning resources,and teaching reflection.Thefirst principles of instruction is mainly to guide the focus problem solving and teaching process.According to the first three ripples of the corrugated circular instructional design,the author divides the focusing problem into complete questions,problem sequences,and skill components.Based on first principles of instruction and interactive methods,the author designed a coherent link in the teaching process of reviewing old knowledge,guiding new knowledge,solving problems,and migrating applications.The teaching interaction methods are explanation,display,questioning,and practice.Learning resources include micro course resources,learning tasks,and after-school exercises,and upload resources to the WeChat platform.The author interviewed a part of science teachers in a middle school in Hangzhou.The main contents included the use of micro-course in junior high school science teaching,and soliciting opinions on applying first principles of instruction to the teaching design of micro-course.According to interviews,most of the teachers interviewed accepted the author's design pattern,and considered it reasonable and applicable.This paper uses first principles of instruction as the guiding theory,carries out the micro-course instructional design for the specific content of the junior high school science,and provides the reference and the reference model for the micro course teaching design.