Design And Practice Of High School Chemistry Principle Experiment Based On Intelligent Terminal

Chemistry is a natural science derived from experiments.Many related researches must be carried out through experiments.Because of the high theoretical and abstract nature of the knowledge involved in high school chemical reaction principle,it is difficult for students to learn.Therefore,it is very necessary to carry out experiments in teaching to explain,verify and summarize the basic laws of chemical change.With the help of intelligent terminal,a series of simple and obvious experiments are developed and applied in classroom teaching.The practice shows that the application of the improved teaching experiment in teaching will help students to actively construct the concept of principle and promote the development of their chemical core literacy.This paper is divided into five parts:Part Ⅰ:Research overview.This paper summarizes the research value,research methods and research ideas of this article,and summarizes the research status of intelligent terminals applied to chemical experiments at home and abroad.Part Ⅱ:Theoretical construction.First,the core concepts used in this article,such as the intelligent terminal,chemistry principle experiment and experimental design,are defined,and then the comprehensive development education theory,pragmatism education theory,constructivism theory and meaningful learning theory are applied as intelligent terminals.The theoretical basis of chemistry experiment teaching,and finally expounds the design principles of chemistry principle experiment based on intelligent terminal and the design principles of teaching practice.Part Ⅲ:Teaching experiment case design.Based on the main analysis of the teaching experiment in the Chemistry Teaching Principle 4 of the High School Chemistry Teaching Edition,the intelligent terminal is combined with the built-in light sensor,external pH sensor and temperature sensor to improve the reaction heat measurement,concentration and temperature 8 teaching experiment cases including the influence of the chemical reaction rate,the factors affecting the chemical balance,and the dissolution balance of insoluble electrolyte.Part Ⅳ:Empirical research on practical teaching using improved experimental cases.Use the improved "Factors Affecting the Rate of Chemical Reaction" experimental case in combination with POE teaching strategies for teaching practice,and finally use the questionnaire survey method and teacher-student interview method to understand the teaching practice effect.Part Ⅴ:Research conclusions,reflections and prospects.Based on the previous theoretical research and practical research,the research conclusion is drawn,and the whole process of the research is combed,and the shortcomings in the research are analyzed and reflected.Finally,the application prospect of the intelligent terminal in the chemistry teaching experiment is prospected.