Design Of Theoretical Experiment Of The High School Chemistry Based On Digital Hand-held Technology

Chemical theoretical experiments are conducted to explain the formation of the basic principles of chemical change.The principle knowledge of chemistry is abstract,inductive and comprehensive,so students have difficult to understand in their learning process.The hand-held technology uses digital images to represent the abstract experimental process in the principle experiment by sensor and data collector.It can realize the visual and real-time observation of the experimental result.It can help students overcome the difficulties in learning chemical theoretical experiments through the analysis of digital image and generalization of principle knowledge.This research aims to perfect the instruction case about the hand-held technology of chemical theoretical experiments based on the existing study.It's combined the reaction principle of the chemical theoretical experiments,with the principle of the hand-held technical device and the principle of operation design.And selected five types of chemical experiments to improve the experimental design.This article is divided into five parts:Part ?:Overview of the study.The research background,research significance,research methods and ideas are summarized.And the researches on chemical theoretical experiments based on hand-held technology are also summarized.Part ?:Theoretical framework.Expound the design principles and ideas about the research on chemical theoretical experiments based on hand-held technology,and define the core concepts.Part ?:The analysis of chemical theoretical experiment in high school chemistry textbook.Analyse three versions of the chemical theoretical experiments in the following aspects:curriculum standards,textbook texts,and experimental operation.Meanwhile,perfect and design the selected content by using the hand-held technology on chemical principle experiments.Part ?:The High-tech chemical theoretical experiments' design based on hand-held technology was evaluated.Implement and evaluate the designing instruction case of the hand-held technology on chemical principle experiments.Expound the targets,contents and results about the experiments.Part ?:Conclusions and Prospect.Summarize the results and reflect on the deficiencies in the research process.And the future of the improvement on hand-held technology about chemical theoretical experiments was prospected.