The Teaching Case Of The Crystal Structure And Properties,based On The Information Technology

Crystal structure and properties is one of the important contents in high school chemistry course. This theoretical and abstract content is of great importance to perfect students’ physical structure knowledge and their work on related industry later. In traditional teaching, the teacher standing in the adults angle or position, with oral description of crystal microstructure is given priority to, students are to stay in the memory phase, remember the crystal structure of a typical representative of matter, but have no real understanding of the relationship between the microstructures and macroscopic properties of crystals. Therefore, The author puts forward using the multimedia technology, applying chemistry teaching case-aided teaching to crystal structure and properties teaching, through chemistry teaching case in the teaching mode realize “student-centered” and “teaching by learning”. Making the crystal microstructure visualized by using multimedia technology, help students understand the relationship between the microstructure and macroscopic properties. The author also writes a teaching plan of crystal structure and properties, based on the information technology,for Chemistry educators reference.This research will be discussed by the following five parts:In the first part, the author analyzes the difficulties in current high school chemistry classroom teaching, and put forward the research value of teaching-plan assisted chemistry teaching that base on information technology. The related domestic and foreign existing researches have been reviewed, affirmed the existing research advantages and analyzed the shortcomings of the existing research. Aiming at the shortcomings of the existing research, this paper puts forward a new research, and points out the research content, purpose and method.The second part is based on the information technology of crystal structure and the properties of chemical teaching, including the definition of related concepts. The teaching plan, design intent of “molecular crystal and atomic crystal” and “ionic crystals” that based on information technology.The third part is the investigation of the effects that information-technology based chemical teaching. including surveys of time, content and methods of investigation; survey analysis; results of statistical surveys, collation and analysis.The fourth part summarized the effects of the information-technology based auxiliary teaching, analyzed its advantages, and point out its disadvantages.The fifth part is a reflection and prospect of this research, point out the insufficiency in the research and put forward expectations.