Application Research Of E-Portfolio Evaluation In STEM Curriculum

STEM education emphasizes interdisciplinary learning and doing learning,and carries out interdisciplinary integration and problem solving in real problem situations.Teaching evaluation of STEM education should not only focus on the results created by students,but also pay attention to the learning process of students’ experience and practice.In this context,this study introduced e-portfolio evaluation into STEM courses,guided students to collect STEM learning sheets,learning logs,works and other learning evidence,and evaluated these evidence so as to understand the thinking path and learning effect of students in the learning process.This study firstly analyzed and designed the teaching elements of STEM curriculum based on portfolio evaluation according to relevant theories of portfolio evaluation and STEM education,defined the objectives of STEM curriculum,teaching methods and curriculum framework,and defined the teaching links and implementation strategies.Secondly,the overall design of electronic portfolio evaluation is carried out.STEM learning sheet,learning log,student learning performance evaluation table and other tools are designed.Portfolio evaluation is integrated into the teaching process,and the curriculum objectives and portfolio content are corresponding one by one.Finally,the teaching practice of STEM e-portfolio evaluation is carried out,and the influence of STEM e-portfolio on students’ self-awareness is discussed through interviews.A quasi-experimental study was conducted to explore the effect of STEM e-portfolio evaluation on high school students’ classroom participation in STEM courses.The research mainly draws the following two conclusions: 1.The introduction of electronic portfolio in high school STEM curriculum can improve students’ PARTICIPATION in STEM class.2.The use of electronic portfolio in STEM courses has a positive impact on the self-awareness of high school students.At the same time,attention should be paid to the following aspects in the evaluation and implementation of STEM course electronic portfolio: 1.Structural STEM course electronic portfolio is gradually transitioned to unstructured portfolio;2.Further strengthen the closeness between the contents of the portfolio and the course evaluation standards;3.Provide thinking scaffold to inspire students to think.The main achievements of this study are as follows: 1.The teaching elements of STEM curriculum based on portfolio evaluation are analyzed,and the evaluation scale and teaching strategy of STEM curriculum objective system are constructed;2.2.Electronic portfolio evaluation is introduced into STEM courses,evaluation embedded in courses is constructed,and the application mode of electronic portfolio evaluation is designed and verified,providing reference for subsequent researchers.