3。2 Traits of micro lecture

 Micro lecture has lots of traits。 The time of a micro lecture is very short and its capacity is little 。 The time of a micro lecture generally controls within 5-8 minutes, not more than 15 minutes, which directly leads to the little capacity of a micro lecture。 Basically, one knowledge point will be elaborated only in one micro video。 It accords with the cognitive traits of middle school students。 Micro lecture also make students concentrated in a short time to acquire knowledge。

Micro lecture also has features of outstanding theme and exquisite content。 Micro class is aimed to solve the remaining questions of some important knowledge in classroom, which makes it’s teaching content more compendious, theme more prominent。 Of course, the theme of each micro lecture will be carefully pided and chosen before making videos。 

Causal space-time, easy to use。 With network popularization and school campus network construction, watching micro videos and learning become randomly by means of network platform, without being limited by the space or time。 Students can find a suitable network platform or client to study by computers or mobile phones。 Students also can watch them repeatedly if they don’t understand something or are interested in something, which can realize personalized learning。来*自~优|尔^论:文+网www.youerw.com +QQ752018766*

Besides that, the teaching content of a micro lecture is fragmentization。 Each micro-lecture video is constructed around some knowledge point。 So teachers must be familiar with and master the teaching contents, then design and arrange them。 After that, teachers can segment learning resources according to knowledge points to let students know well one or more knowledge points。 Learning contents fragmentation can meet students’ need of scattered learning。 

3。3 Types of micro lecture

According to classroom teaching methods, micro lecture can be classified into 11 categories: lecture, question and answer, enlightenment, discussion, demonstration, practice,  performance,experiment, cooperative learning, self-directed learning and inquiry learning, among which the most popular types of micro lecture are lecture and experiment。

The lecture category is the most common type in micro-lecture competitions and platforms。 It is suitable for teachers to impart knowledge to students with colloquial  manners。 In terms of English classes, to introduce background information, authors and literary knowledge are all can be designed for this type。