信息论认为:人们研究问题不但要研究控制系统中的计量、传递、贮存和使用,还要研究信息变换的规律。信息变换,主要是指信息形态变化、信息内涵的转换变化、信息扩展拓宽、衍化派生新信息的过程。在教学信息的传递过程中,教学信息属性受学生旧知识水平、概括水平和心理品质等因 The information theory holds that people’s research problems must not only study the measurement, transmission, storage and use in the control system, but also study the laws of information transformation. Information transformation mainly refers to the process of changes in information modality, changes in information connotation, expansion of information expansion, and derivation of new information. In the transmission of teaching information, the attributes of teaching information are influenced by the old knowledge level, general level and psychological quality of students.