This research aims to examine the learning methods and challenges faced by several students when solving mathematics problems regarding number patterns, with an emphasis on analyzing students' thinking processes. This study employs an approach to analyze students' ways of thinking. In this study, a qualitative approach is used with a case study method on a group of junior high school students. Information was collected through observations and analysis of students' work. The findings of the research indicate that students apply various strategies in understanding the material of number patterns, which include memorizing patterns to trying to find their own formulas. However, many students face difficulties in drawing conclusions about patterns and connecting relevant mathematical concepts to everyday life. Common mistakes include errors in recognizing patterns, errors in calculations, and a lack of precision in understanding problems. Analysis of the thinking process shows that some students are still at the concrete operational thinking level, so they need visual aids and real-life examples to better understand patterns. This research emphasizes the need for an approach in teaching that can enhance students' abstract thinking abilities and requires varied practice in determining numerical pattern problems.
 
 

This study aims to describe students' mathematical understanding abilities through the application of a problem solving approach using magic coin media on integer operation material. This study is a qualitative study with a descriptive approach conducted at MTs An-Nuur Palembang in May of the 2025/2026 academic year. The subjects of the study were 25 grade VII students who were selected purposively. Data collection was carried out through observation, documentation, and learning outcome tests. The results of the study showed that the use of magic coin media in mathematics learning was able to improve students' conceptual understanding. This media helps students to be more active, understand integer operations concretely, and be involved in the problem-solving process independently or in groups. These findings indicate that the problem solving approach combined with magic coin media can create a fun learning atmosphere, and is effective in improving students' mathematical understanding abilities.