(A) conducive to the realization of differential teaching.

As independent individuals, students have great differences in learning thinking, ability, personality and interest. The new curriculum reform requires paying attention to the development of all students and teaching students in accordance with their aptitude. The development of teaching activities based on the cloud platform can automatically record students' learning behaviors, facilitate teachers to grasp the learning situation in time, make scientific evaluation according to students' mastery of knowledge points and ability development, make teachers get rid of the limitations of their own experience, and arrange targeted teaching content and progress in combination with the data fed back by each student, thus effectively realizing differentiated teaching.

(B) conducive to the innovation of teaching mode

Under the background of the cloud era, cloud platforms, networks and intelligent terminals have gradually penetrated into the field of education, which has brought a certain impact on the traditional teaching mode. The teaching activities supported by the cloud platform will enhance the vitality of the teaching mode and give birth to various new teaching modes. First of all, under the traditional teaching mode, teachers can collect various forms of teaching resources such as words, videos and pictures on the cloud platform, design open learning tasks, use classroom situations to present the micro-world, enhance authenticity and promote the combination of students' perceptual cognition and rational cognition. Secondly, in the autonomous cooperative learning mode, we can adopt the "flip classroom" mode, which can be divided into three links: before class, during class and after class, so as to optimize the classroom structure. Finally, the cloud platform contains a variety of teaching resources and tools. Students can learn actively and diversely on the portable terminal according to their own time, and even collaborate with teachers and students in distance, thus forming a ubiquitous learning mode.