The character of nations that now becomes the focus on various life aspects ishonesty. Now, the value of honesty is used as an example of a precious and costly thing. The weak value of honesty in school, like cheating and lying to a teacher, will negatively affect the education process and the learning outcome. The value of honesty can be improved through self-service canteen, so the material or main topic of the lesson in the subject can be immediately implemented. Self-service canteen is one of the effective strategies that enablethe students to learn and practice implementing the values of anti-corruption and as a forum for the education of the prospective anti-corruption national leader. The study conducted at SMA Negeri 8 Malang discussed (1) the implementation of character-building education development through the management of self-service canteen at SMA Negeri 8 Malang, (2) the description of the obstacles found in the implementation, (3) the description of solutionsto reduce the obstacles during the implementation. This study used a descriptive qualitative approach, in which the researcher was directly involved to find out information related to the title of the study. The data were collected through observation, interviews, and documentation. In addition, the informants were the headmaster, vice headmaster for student affairs, the coordinator of anti-corruption education/self-service canteen, civics teacher, and students ofSMA Negeri 8 Malang. Based on the research finding, the conclusion was obtained as follows: (1) Anti-corruption education/self-service canteen was launched 6 months ago. The concept was simple by providing snacks and beverages. The food was displayed on a table with is the price tag. There was a box for money from the box. The management mechanism was fully offered to the students, under the guidance of the management coordinator self-servicecanteen. (2) There was not any available change. Consequently, some students who owed forgot to pay. (3) The coordinator of self-service canteen gave instructions and guidance to the students continuously during the flag ceremony and the class activity, inserted the lesson materials about honesty, fairness, simplicity, struggle, and others.

The purpose of this study was to improve students' problem-solving abilities using the Team Assisted Individualization (TAI) model in students grade IV of Bekasi Jaya II State Elementary School. This study was carried out because of the students' low problem-solving ability in Mathematics.This study employed the Classroom Action Research approach, which was conducted in two cycles. Each cycle has four stages, namely, planning, implementation, assessment, and reflection stage. About 27 students from grade IV has participated in this study. Data collection was carried out through written tests and observation sheets. Data were analyzed with descriptive analysis. The criterion for success in this study is if 80% of students achieve a minimum score of 75.Based on the results, the students' problem-solving ability in cycle I with classical completeness was 59%, and got an average score of 72. In cycle II with 89% classical completeness, and the mean score of students' problem-solving abilities increased to 88. Thus, it can be concluded that the Team Assisted Individualization model can improve the conceptual understanding of grade IV students of Bekasi Jaya II State Elementary School.

This research is motivated by the ability to solve mathematical problems in elementary schools is still not optimal in fact learning mathematics in Indonesia still does not provide satisfactory results. This study aims to describe the open-ended approach to the problem-solving abilities of elementary school students. The research method used in this study is the Systematic Literature Review (SLR) by identifying, assessing, and interpreting all the findings in a study to answer research questions that have been determined previously. This study examines 13 articles on the final results of screening based on inclusion criteria, there are 4 journals using the Classroom Action Research method, 4 journals using quasi-experimental research methods, 2 journals using experimental research methods, 2 journals using quasi-experimental research methods, and 1 journal using quasi-experimental research methods. qualitative research. Based on the analysis of 13 study materials, the results on the application of the open-ended approach to elementary school students increased in each cycle. It can be seen the difference between the results of the application of the open ended approach in the high and low classes, namely in the first cycle of 23%, the second cycle of 5%, and the third cycle of 1.1%. Based on these results, it can be concluded that the application of an openended approach can improve the mathematical problem solving ability of elementary school students.

This research is motivated by the low ability to solve mathematical problems in fifth grade students of SDN Kaliabang Tengah 1 Bekasi Utara. Seen when researchers provide exercises in the description of mathematical problems in the form of stories on fraction material. There is still a lack of student knowledge regarding fractional material. When working on the story problem students simply add up or subtract the denominator by the denominator and the numerator by the numerator, without first equating the denominator. Students have not been able to solve problems correctly and many are still wrong. The lack of students' ability to infer results obtained from mathematical story problems. Enthusiastic students are lacking in solving mathematical story problems that are considered difficult. This study aims to improve the ability to solve mathematical problems using problem solving models in fifth grade students at SDN Kaliabang Tengah 1, North Bekasi. The research method uses Classroom Action Research (CAR) which consists of 3 cycles.. The conclusion of this study is the problem solving model can improve the ability to solve mathematical problems in fifth grade students at SDN Kaliabang Tengah 1 Bekasi Utara. AbstrakPenelitian ini dilatarbelakangi oleh rendahnya kemampuan pemecahan masalah matematika pada siswa kelas V SDN Kaliabang Tengah 1 Bekasi Utara. Terlihat ketika peneliti memberikan latihan soal uraian matematika dalam bentuk cerita pada materi pecahan. Masih kurangnya pengetahuan siswa mengenai materi pecahan. Pada saat mengerjakan soal cerita tersebut siswa langsung saja menjumlahkan atau mengurangkan penyebut dengan penyebut dan pembilang dengan pembilang, tanpa disamakan terlebih dahulu penyebutnya. Siswa belum bisa menyelesaikan soal dengan benar dan masih banyak yang salah.Kurangnya kemampuan siswa dalam menyimpulkan hasil yang diperoleh dari soal cerita matematika. Antusias siswa kurang dalam menyelesaikan soal cerita matematika yang diangap sulit. Penelitian ini bertujuan untuk meningkatkan kemampuan pemecahan masalah matematika dengan menggunakan model problem solving pada siswa kelas V di SDN Kaliabang Tengah 1 Bekasi Utara. Metode penelitian menggunakan Penelitian Tindakan Kelas (PTK) yang terdiri dari 3 Siklus. Kesimpulan dari penelitian ini adalah model problem solving dapat meningkatkan kemampuan pemecahan masalah matematika pada siswa kelas V di SDN Kaliabang Tengah 1 Bekasi Utara. Kata kunci: Model Problem Solving, Kemampuan Pemecahan Masalah Matematika

This study aims to see the description of the application of the Rotating Trio Exchange strategy in improving students' mathematics learning outcomes in elementary schools. This is motivated by the low mathematical results of students, students feel bored and afraid in participating in mathematics lessons, and many teachers still apply conventional learning. Of the many solutions applied in previous research, one of them is implementing the Rotating Trio Exchange strategy. The research method used in this study is Systematic Literature Review, this research was conducted by systematically assessing and identifying journals. The data used in this study are journals that have inclusion criteria, namely: journals discussing the Rotating Trio Exchange strategy and mathematics learning outcomes, journals for the last 10 years (2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019)(2020)(2021)(2022), elementary school students, and Indonesian language journals. Based on the inclusion criteria, 9 journals were obtained, 3 journals used the quasi-experimental method and 6 other journals used the PTK method, journals with low-class research subjects, namely 2 journals and 7 other journals, were high-class, while the results of the students' average score reached 65.676. cycle II the overall average value increased to 81,684. So that there is an increase in the difference between the first cycle and the second cycle as a whole reaching 16.008. So that the Rotating Trio Exchange strategy can improve mathematics learning outcomes in elementary schools..