Similarity is a crucial concept introduced in the 8th grade, and it is further developed and reinforced through associations during high school. This research aims to investigate how 8th grade students construct the concept of similarity using concrete manipulative support within the framework of APOS theory. The research was conducted as a…

This study aims to examine the impact of mathematics teaching supported by virtual manipulatives in an online learning environment on the academic achievement of primary school 4th grade students. In the study using a mixed method, experimental (n=24) and control (n=24) groups were established. While the experimental group was taught online with…

In this study, a paper folding activity task, which involved reaching the Pythagorean Theorem with a series of steps was designed. The aim of the task is to reach the Pythagorean Theorem with folding activities by deductive reasoning and logical inference. The study aimed to examine the effectiveness of the task and to share the patty paper…

The aim of this research is to determine the effect of activities in accordance with the Waldorf approach supported by the cooperative method on the early number assessment skills of 48-60-month-old children. The study, which was carried out in accordance with the quasi-experimental design with the control group, was planned as two activity hours…

This study aims to examine changes in students' achievement in geometry, attitude towards geometry, and their self-efficacy perception of geometric knowledge while working on paper folding activities through an experimental research methodology. The sample for this experimental study was 108 ninth-grade high school students. The study's data were…

A multidisciplinary origami activity that could be used in middle school mathematics and science lessons was designed and implemented. Mathematical purpose of the origami activity is to support students' conceptual understanding and procedural skills related to the concept of fraction. Regarding science, the activity aims to visualize Solar system…

The aim of this research is to examine the effectiveness of the concrete-pictorial-abstract learning strategy presented with the direct teaching method in teaching the subject of mixtures, which is one of the science subjects, to students with intellectual skills disabilities. The study used multiple-probe model with a probe phase, one of the…

This paper investigated the effect of block-based programming and unplugged coding teaching activities on fifth graders' computational thinking skills, self-efficacy, and academic performance. The teaching activities were conducted within the scope of the "Problem-Solving and Programming" unit of the Information Technologies and Software…

The main purpose of this research is to determine the effect of the REACT strategy in augmented reality applications on the problem-solving skills of teacher candidates. A parallel mixed method, which converges from mixed research designs, was used in the research. The study group of the research consists of 50 teacher candidates studying at the…

Limited knowledge is currently available regarding the efficacy of mathematics education in online distance learning and the strategies that can be implemented to enhance its effectiveness. The purpose of this study is to investigate the changes in rural students' spatial skills when engaging in activities that necessitate the use of isometric…

Although positive effects of lesson study on teachers learning are reported, only some studies have investigated teacher noticing as an analytical tool for supporting teachers with an explicit focus, as in LS, and more empirical evidence is needed. This qualitative interpretive case study design aims to investigate the noticing processes of a…

The purpose of this study is to examine the effect of using concrete and virtual manipulatives relevant fractions subject to 3rd grade students' understanding of fractions and motivation towards mathematics lessons. The study group consists of 61 students studying in three different classes at the 3rd grade level of a private primary school in…

Students with visual impairment have the same range of mental abilities as their sighted peers. However, these students experience academic failure, especially in courses in which visual themes are dominant, as they cannot use their sense of sight to process information sufficiently. One of the courses that students with visual impairment have the…

Educational games can be used as an effective means of transferring knowledge in a fun way to complement education and training. The aim of the study was to develop a game and get students' opinions on the game that can be played in Organic Chemistry courses in order to teach the names of commonly used organic compounds with cyclic and aromatic…

The research reported on here was designed in a qualitative approach to present the opinions of pre-service pre-school teachers on the use of mathematics activities. The sample consisted of 10 pre-service teachers, who in their fourth year of pre-school education in the teaching department in 2017 to 2018. The pre-service teachers in the study…