Abstract

• The primary purpose of this study is to explore the effectiveness of portfolio assessment in students’ learning of mathematics. Sixty Grade Nine students from Basic Education High School (Wei Gyi) participated as sample in this study. Mathematics Achievement Test, Mathematics Attitude and Perception Survey (MAPS), Portfolio Scoring Rubric, Self-Assessment Form, Students’ learning log and Interview Question were used as the research instruments. According to the qualitative data analysis, the results of self-assessment form and students’ learning log showed that using assessment form and learning login portfolio development process could point out the strengths and weaknesses of each student. The results of portfolio scoring rubric pointed out that most of the students could perform well in developing of portfolio in learning of mathematics. The results of students’ interview question also revealed that students in experimental group enjoyed constructing portfolio in learning of mathematics. As a quantitative data analysis, the results of achievement test showed that students who used portfolio in learning of mathematics performed better than the students without using portfolio. The results of mathematics attitude questionnaire also showed that the use of portfolio in learning of mathematics could change positive in students’ attitude towards mathematics.