The Applied Research Of Serialized Micro-classes In Chemistry Teaching In Senior High School

The development of information technology has promoted the reform of educational teaching method.Micro-class is an important teaching resource combining information technology and education,which develops rapidly in education due to its advantages of short time and simple content.In recent years,the research on micro-class in China is gradually enriched and deepened.There are excellent works in the micro-class competition and websites held in China.But overall,Micro-classes vary in quality,the content of a single micro-class is relatively scattered,and special type of micro-class is less,these shortcomings are not conducive to students’ systematic and structured construction of knowledge system,and this is a problem in the development of micro-class.After consulting the literature,we found that serialized micro-class is the general trend of the development of micro-class in the future;it can solve some problems existing in micro-class,and can also effectively help students construct a systematic knowledge system.However,the development of serialized micro-class is relatively slowly,and there are few researches combining serialized micro-class with disciplines,and even fewer researches in serialized micro-class combining with chemistry disciplines,this has become the focus of the research.serialized micro-class is mainly based on micro-videos,and is composed of three to five or more sub-micro-class as a new information learning resource.The contents of sub-micro courses are concise,interrelated or have clear teaching clues,have common teaching goals or have similar knowledge points.Guided by constructivism theory,informal learning theory,connectionism theory and so on,taking the teaching of "knowledge of nitrogen and its compounds" as an example,it can be seen from the preliminary analysis of related serialized micro-class that,the production process of serialized micro-class in chemistry teaching in senior high school includes links: to determine the theme and points of classes;serialized micro-class design;record serialized micro-class;teaching practice;reflection and modification;upload platform.According to the above production process,I designed a serialized micro-class of nitrogen and its compounds knowledge,developed a lesson plan template of serialized micro-class,script design template,they provide a case for the development of chemistry serialized micro-class and make up for the high school chemistry serialized micro-class deficiencies.Through the above research,the following conclusions are drawn:(1)The use of serialized micro-class in nitrogen and its compounds knowledge micro-classes has been welcomed by students and teachers.It shows that the use of serialized micro-class in middle school chemical element knowledge can effectively change students’ learning style,improve students’ interest in learning,and facilitate the systematic construction of factual knowledge.(2)some matters should be paid attention to in the teaching use of serialized micro-class:(1)students’ independent learning ability should be considered: Survey data shows that,there is a great relationship between learning benefit and independent learning when students use serialized micro-class to learn.Therefore,the use of serialized micro-class should take into account students’ autonomous learning ability.(2)The use of serialized micro-class should be guided by the teacher: If only serialized micro-class is used for teaching,students have a lower sense of class participation.Therefore,when serialized micro-class is used in class,the teacher can pause,guide students and analyze the teaching contents in depth,improve students’ dominant position in class,at the same time,teachers can guide students to complete the teaching objectives according to the teaching design.(3)the use feedback of serialized micro-class should be timely: if we found missing knowledge points when use serialized micro-class in teaching,we must supplement knowledge after class in time.If the feedback shows that students cannot understand some knowledge,teachers should collate and revise instructional design or instructional language.Because serialized micro-class involve many knowledge points,if not timely collate and revise,it will affect the learning progress and efficiency of students.(3)When design the teaching of serialized micro-class,in addition to ensuring the subjectivity of textbook content,teachers can choose appropriate teaching topics according to textbook knowledge points,For example,We can design relevant chemical history and video clips into the teaching process to improve students’ learning interest and the effectiveness of classroom teaching.Relevant chemical history and video clips,and design them into the teaching process.