Mathematics curriculum used in North Cyprus emphasizes that mathematics skills help people to improve problem solving and creative thinking skills. Being able to express own ideas, critical thinking and self-evaluation are some of the skills stated in the curriculum. Portfolios are one of the best methods for students and teachers that help to consider student progress and development and a useful tool to fulfill the requirements mentioned in the curriculum. Furthermore, portfolios may also help teachers to shape their instruction, guide students through learning process and be able to...