Internatıonal Esep Congress On Educational Sciences and Effective Practices
The Ministry of National Education (MEB) has initiated the "Mathematics Mobilization" with the aim of increasing students' capacity to relate mathematics to daily life and promoting the concept of "Math Everywhere." When examining the efforts carried out by MEB and its stakeholders within the scope of this mobilization, it is observed that mathematics is treated as one of the process standards, emphasizing the importance of relating mathematics to daily life and highlighting the facilitation of mathematics teaching. Within the framework of the Mathematics Mobilization, the goal is to adapt the learning of mathematics to daily life skills, teach mathematics by concretizing it and ensure that students enjoy this subject. In line with these policies, the facilitation of mathematics teaching and the development of mathematical operational skills through prepared concrete materials are targeted. Based on all these requirements, this study aims to examine the impact of the Hesapmatik material on the teaching of addition and subtraction operations with integers. The use of Hesapmatik material is intended to reduce difficulties encountered in addition and subtraction operations with integers and to establish a logical basis for these operations. Additionally, understanding the nature of mathematics to make it more frequently used in daily life, transforming learning processes into a fun and student-centered approach, strengthening students' 21st-century skills in problem-solving and information processing and enriching learning processes with different materials have been identified as sub-goals. The working group of the study consists of 7th grade students from a middle school in Çatalca, İstanbul. A single group pretest posttest design was employed in the research and the results were analyzed using descriptive analysis method. To enhance the operational skills of 7th grade students in integers, Hesapmatik material was developed which consists of a spiral-shaped number line wrapped around a cylinder. Throughout the Hesapmatik process, each number was associated with 10 steps above, 10 steps below, 1 step to the right and finally 1 step to the left. The application was carried out by associating it with the learning area of Numbers and Operations, under the domain of İntegers and Operations in the 7th grade Mathematics Curriculum. Following the activities in the Ministry of National Education Mathematics coursebook, the integration of the prepared Hesapmatik material with the curriculum was ensured. At the end of the 10-hour application, pretest and posttest results were compared. The attainment of the goal "Performs addition and subtraction operations in integers, solves related problems" was achieved through Hesapmatik and the learning process was concretized. It was concluded that Hesapmatik creates enjoyable and instructive environments in the teaching of operations with integers. Hesapmatik material is effective and contributes to the learning of mathematics through seeing, touching and doing