A Study On The Design And Practice Of Project-based Learning In High School Chemistry ——Taking Elemental Compounds As An Example

With the rapid development of social politics,economy,technology and culture,the new era has put forward higher requirements for talent cultivation.In order to conform to the general trend of world education reform,cultivate comprehensive and innovative talents,and develop students' core literacy and subject competence in chemistry,project-based learning,as a new teaching mode in line with the characteristics of talent cultivation in the era and the international education development trend,has gradually become a research focus for educators.Through literature combing,the current research status of project-based learning at home and abroad and the current teaching status of elemental compounds in China were reviewed and analyzed,based on which the concept,characteristics and basic process of project-based learning were defined.Student questionnaires and teacher interviews were designed to investigate the current teaching status of elemental compounds in senior high school.On this basis,the characteristics and teaching values of elemental compounds were summarized,and the teaching strategies of project-based learning were proposed: determining project topics based on real situations;designing real and meaningful driving questions;designing challenging activity tasks;conducting results reporting and communicating to deepen learning outcomes;and developing diversified evaluation methods.Under the guidance of the project-based learning design strategy,two project-based learning cases were developed: "The formation and prevention of sulfuric acid rain" and "The mystery of nitrogen fertilizer".The students in a high school in Dalian were used as the subjects of the study,and the results were evaluated and analyzed through tests,student self-assessment forms,group mutual evaluation forms,and interviews.The study showed that project-based learning can improve students' ability to understand and apply knowledge,cultivate and develop students' comprehensive ability and core literacy in chemistry,and enhance students' interest in learning.