This study aims to produce a learning trajectory using the mathematical modeling in helping students to understand the concept of algebraic operations. Therefore, the design research was chosen to meet the research aims and to give in formulating and developing local instructional theory in learning algebraic operations. Learning trajectory…

It is thought that the results of teaching some of the subjects in science through outdoor education will be more positive. The purpose of this study is to find out the effects of activities done through outdoor education on students' academic achievement, students' thoughts about the activities and the permanence of information. Mixed research…