Özet:

This study was conducted in order to study the skills of the mathematician candidates to prove the ability to divide. In the study, a distinctive pattern of karma research methods was used. The study was conducted in the 2016-2017 academic year with the last-class mathematics teacher candidates who studied at Bayburt University. In the study, the data collection tool has been used by action cards, observation forms and voice proof thinking protocol technique. In the event cards, teachers were asked to present recommendations to the candidates. The recommendations used in the study were selected as recommendations that did not require previous theories in the proof phase. Also, the recommendations used are selected as not requiring insight and can be proven as a result of a certain process. In the analysis of data, visual analysis and content analysis were used. The study found that some teaching candidates were difficult even for evidence at the basic level that could be done using the definition of dividing, even some teaching candidates were unable to learn even at the conceptual level.