A mathematical autobiography. They also believe that students are more able to link successes and failures to performance and may also facilitate goal setting through portfolio assessment. According to them, portfolios can be used to evaluate both products and process, and they allow the integration of learning and assessment. Learning based on portfolio assessment can be more student-directed, and since evaluation is not based on single scores, instruction based on learning styles is more easily evaluated. Therefore, students feel as they take bigger roles in the learning and the assessment processes.
Portfolios also help students develop skills necessary for life-long learning.
On the other hand, portfolios reduce the teacher's daily burden of grading papers. In sum, portfolios enable to assess global understanding and thinking skills with a multidimensional form of evaluation. Even though results in using portfolio assessments are positive, some educators found disadvantages of using portfolios. Mostly they mentioned that portfolio assessment imposes substantial burdens on them such as time demands of planing and administering problems. Also, maintaining portfolios can be problematic and time-consuming.