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All Journal AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Kognitif: Jurnal Riset HOTS Pendidikan Matematika
Siregar, Luthfiyatul Adawiyah
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Computer Science & IT Education Library & Information Science Mathematics Social Sciences Other

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Naposo Nauli Bulung Sebagai Pencegah Kejahatan Mutilasi Di Desa Barak Gajah Nasution, Cindy Fadilah; Siregar, Luthfiyatul Adawiyah; Putri, Aziah Aulisa; Siregar, Dwi Silvia Zakiah Sarianta; Lubis, Asnarni
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 8 No 1 (2024): Amaliah: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v8i1.3217

Abstract

The increase in crime cases in society is a matter of great concern. This is because one of the causes of crime is due to a lack of knowledge in critical thinking which causes people, especially teenagers, to undervalue the importance of self awareness and care about the importance of protecting themselves from various crimes. This counseling aims to introduce teenagers in Barak Gajah village about the importance of protecting themselves and creating inclusive policies by building a Naposo Nauli Bulung Organization and adding insight into preventing and reducing all forms of crime by carrying out productive activities in order to strengthen how to prevent crime, especially the term mutilation, from happening. The method used in this implementation is the Participatory Action Research (PAR) method which is divided into several stages, namely in the first stage starting with giving a pre-test in the form of a questionnaire to measure the initial ability of the youth of the Barak Gajah Village related to crime, educational activities, watching activities together, recitation activities, and sports activities. The results showed that the average understanding of Barak Gajah Village youth increased from 40% to 90% after counseling. Thus, Naposo Nauli Bulung activities can be used as an effort to prevent crime among adolescents.
Measuring Junior High School Students’ Critical Thinking Skills Through Set Operations Tasks Nurdalilah, Nurdalilah; Putri, Aziah Aulisa; Siregar, Luthfiyatul Adawiyah; Shaputra, Ramadan; Febrian, Feri Dwi
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 4 (2025): October - December 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i4.2515

Abstract

This study aims to describe students’ critical thinking skills. Critical thinking is essential for students, especially in 21st-century learning, where many students use technology to explore answers without fully understanding the questions and the solutions. This study focuses on students’ understanding of set operations in mathematics and identifies the difficulties they face. The participants were 27 ninth-grade students at Al-Manar Junior High School. The study employed a qualitative approach with a descriptive design to analyze students’ abilities to solve problems, decide and implement solution steps, perform operations, and apply mathematical induction related to set operations. The findings are expected to reveal students’ critical thinking skills and their understanding of basic mathematical concepts, particularly in set operations, as well as to identify factors influencing their understanding, thereby improving the quality of mathematics instruction at the primary and secondary education levels. The instrument used to collect data was a test administered to students on the topic of set operations. Data analysis followed these steps: data reduction, data display, and drawing conclusions. The results indicate that students’ ability to solve mathematical problems on set operations is uneven. Based on the critical thinking categories used in this study, no students reached the “very good” category; 80% were in the “good” category, 5% in the “fair” category, and 15% in the “low” category. This distribution was evident in students’ responses, suggesting that their overall problem-solving ability can still be considered good. Therefore, the researcher recommends that teachers pay greater attention to and further develop students’ critical thinking skills and their understanding of basic mathematical concepts.
Co-Authors Febrian, Feri Dwi LUBIS, ASNARNI Nasution, Cindy Fadilah Nurdalilah, Nurdalilah Putri, Aziah Aulisa Shaputra, Ramadan Siregar, Dwi Silvia Zakiah Sarianta