Education informatization is the ultimate goal of educational development. As the most important element of education system, good management of class is the guarantee of high teaching level and quality. The application of information technology in the course of class management, is combining the management mode with the mainstream "Internet +" technology, which breaks the traditional class management limited to the internal constraints of the campus, and realize the interaction among the four subjects of the class teacher, lesson teachers, students and parents. The informatization solutions highlights the system of class management and enhance the efficiency of class management. The functions of information technology in class management are analyzed, mainly based on the primary and secondary school class management problems and needs. Also, the functions in class management with the common platform of office automation software such as DingTalk is illustrated as an example. The real running proved the efficiency.

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K-means algorithm is used to analyze pretreated monthly load data of power consumers from a certain domestic area in China. It can get different clusters in three months, and those can be roughly divided power consumers into different types, such as residents, businesses and factories based on power customers' behavior analysis. A measure is introduced to evaluate the reliability of the algorithm. According to the above clustering results, it can be found out that the power consumption characteristics of all kinds of consumers in the corresponding months. In view of these characteristics, this paper can play a guiding role in formulating the corresponding power service strategy for different types of power consumers in power supply companies.

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