Research On The Design And Implementation Of Project-based Chemistry Teaching In Senior High School

According to the specific requirements in the chemistry curriculum standards for senior high schools(2017 edition and 2020 Revision),teachers should pay attention to the cultivation of students' learning ability in all aspects,the shaping of learning habits and the building of learning interests,and improve students' understanding of the key contents of senior high school chemistry learning through more comprehensive and comprehensive teaching methods,so as to achieve the knowledge objectives of students' learning.In the current high school teaching,the traditional teaching methods are mainly used for the teaching of sodium,chlorine and their compounds.Although the students' learning content can be quickly strengthened in a short time,the students can not develop the knowledge exploration ability of learning chemistry in a long time.Project-based teaching can help students to explore and innovate a series of knowledge tasks and blocks by selecting the chemical life situation related to reality,and can well cultivate students' innovative spirit and practical ability.In the process of this research,the project-based teaching is taken as the teaching mode.In the research of the thesis,the literature research method,questionnaire survey method,experimental research method and interview method are mainly used.Through sorting out a large number of documents,the definition,characteristics,general process and research status at home and abroad of the project-based teaching are sorted out.The teaching objectives are determined in combination with factor analysis and the practical problems existing in the learning process of students are sorted out.This paper puts forward four steps of project-based teaching unit design: determining the core task,clarifying the unit goal,standardizing the learning evaluation and integrating the learning content.Taking sodium,chlorine and their compound units as examples,the teaching process with wastewater process and wastewater treatment as the project background is set up,and the problems in chemistry and life practice are used as situations for teaching.Four task forms are set up in the teaching,which are heavy metal ion treatment,chloride ion treatment,gas treatment and p H treatment.During the internship,we carried out relevant project-based teaching practice,and used independent sample t-test to analyze the scale data.Finally,based on the survey results and research data for statistical analysis,based on experimental data,analyze the teaching results of project-based teaching and put forward relevant suggestions for later researchers.