Considering the characteristics that teachers should have, concepts such as critical thinking, active learning, taking responsibility, evaluation, analysis, self-evaluation and reflective thinking are important. In this context, micro-teaching and peer assessment methods come to the fore. Micro-teaching is defined as sharing a part of the course with peers and receiving feedback from peers or advisors. Peer assessment, on the other hand, involves providing constructive suggestions among peers, reviewing and giving feedback according to predetermined criteria. In the study, pre-service teachers' views on micro-teaching and peer assessment methods were evaluated. The study was designed as a case study, one of the qualitative research methods. The participants of the study consisted of eight pre-service mathematics teachers studying in the Department of Elementary Mathematics Teaching at a university in Turkey. Questionnaires about microteaching and peer assessment were used as data collection tools. A 14-week microteaching and peer assessment implementation process was carried out with the participants. As a result of the applications, pre-service mathematics teachers' opinions about these concepts were obtained. As a result, the pre-service teachers stated that the application provided positive developments in their cognitive, affective and psychomotor behaviors and that they gained professional experience.