This study aimed to determine the perceptions of pre-service science teachers on alternative assessment tools they developed using a feedback process. The pre-service teachers received written and verbal feedback during the process; however, they decided themselves to do revisions or not. Consequently, the second purpose of the study was to…

Creative thinking ability can be trained to students during learning process using suitable learning materials. The purpose of this study was to produce a valid and practical student worksheet based on iMindMap in Animalia topic to train students' creative thinking ability. This R & D referred to 4D model (define, design, develop, and…

It has been determined that the drawings, photographs and pictures related to the subject of the continuity of the tangent function on page 68 of the Ministry of National Education's twelfth-grade mathematics textbook contradict principles 1, 7 and 10 of Yanpar's (2007) teaching material development principles. According to these principles,…

This study aimed at exploring the quality of teaching materials developed by prospective mathematics teachers and their viewpoints on developing teaching materials. It was carried out with 170 prospective teachers from 4 classes in the Fall Semester of 2014-2015 Academic Year. During the first 8 weeks of the 14-week-long study, the theoretical…