This study aims to determine the influence of work discipline, workload, and work environment on employee performance at the Mranggen village office.The method used in this study is a quantitative approach. The population in this research consists of employees working at the Mranggen village office, with a sample of 40 respondents selected using Saturation Sampling  technique. The data analysis method used is multiple linear regression analysis.The results of the study show that, based on the t-test and F-test, work discipline and work environment have a positive and significant effect on employee performance. Meanwhile, workload has a negative and significant effect on employee performance. Furthermore, work discipline, workload, and work environment simultaneously have a significant effect on employee performance.This study supports various theories that highlight the significant role of work discipline and work environment in shaping employee performance. The implication of this research is expected to contribute to the improvement of employee performance.

This study aims to improve mathematics learning outcomes on addition and subtraction material through the use of elevator media in Grade 1 at SDN Pakahan in the 2024/2025 academic year. The problems encountered include low understanding of place value concepts, confusion in the borrowing and carrying process, and monotonous and less varied learning methods. The study employed a classroom action research approach conducted in two cycles, using both quantitative (pre-test and post-test) and qualitative (observation, interviews, and reflective journals) data collection techniques. The results showed an increase in the average student score from 72.2 initially, to 78.8 in the first cycle, and 88.4 in the second cycle, with a learning mastery rate reaching 100%. This improvement was influenced by the use of concrete learning media, increased student motivation, appropriate evaluation questions, and effective classroom management. Thus, the elevator media proved to be effective in enhancing students’ understanding and learning outcomes in basic arithmetic operations.

Character in the sense of attitude or behavior is closely related to language, and this relationship is logical or structural because language is a reflection of a person's attitudes and behavior.  Language is a symbol of human existence that can be known about their desires, educational background, customs, even their region or country of origin.  When someone communicates by choosing polite words and expressions, that person will use good sentences. Providing direction and socialization about positive language attitudes can improve language skills and foster polite and polite character among teenagers. This community service activity was held at youth youth organization Rt.001/Rw.004 Tanah Baru, Beji, Depok City, West Java. The way to select partners is based on survey and interview results, namely that the majority of teenagers still often use slang and viral language that is not educational. The method of implementing this activity is education as well as direction and socialization. The results of this community service activity are Karang Taruna youth have gained knowledge and experience regarding polite and polite character through positive language attitudes so that it will really help teenagers in socializing with their surrounding environment.

Limitated of infrastructure is one of the issues affecting the continuity of education in Indonesia. The unequal distribution of facilities in schools undoubtedly makes the learning process less effective and impacts students' learning outcomes. This is particularly evident in physical education, sports, and health lessons, which require equipment for the learning process. The lack of equipment prevents the expansion of sports education and the introduction of other sports as part of the curriculum. One example is handball, which is rarely taught in schools due to the lack of balls. As a result, some schools resort to using other balls, such as volleyballs, to teach handball. Using a volleyball in handball lessons is ineffective, especially when it comes to shooting. This issue led the researcher to consider modifying the handball with a rubber ball, which is easy to find and resembles the size of a real handball. The researcher then implemented this modification in a two-cycle action research study. The results from the pre-cycle assessment showed that only 2 out of 35 students passed the shooting test. In terms of percentage, this means only about 6% of the students were able to shoot well. Following this, the researcher took action in the first cycle, and 19 students passed, about 54% of the sample. Since the results were still considered suboptimal, the researcher proceeded with the second cycle, where 32 students passed, around 91% of the sample.

The use of social media such as TikTok in mathematics education and row and sequence materials is still rarely explored, although it has the potential to change the paradigm of presenting supplementary materials. This is because generally additional material is presented through platforms that are specifically for learning such as Geogebra, learning modules, or Kahoot. This study aims to determine the effectiveness of TikTok-assisted learning supplements on the ability to understand concepts and students' interest in learning the material of arithmetic rows and series from the results of test work and questionnaires through pre-test and post-test that have been carried out. The population in this study were all students of class XI SMA Negeri 1 Manonjaya and the sample in this study were students of class XI IPA 5 SMA Negeri 1 Manonjaya. This study uses a quantitative approach with quasi-experimental research methods. The results of this study, namely: 1) the use of TikTok-assisted learning supplements is effective to improve students' concept understanding ability on the material of arithmetic rows and series; and 2) the use of TikTok-assisted learning supplements is not effective to increase students' interest in learning on the material of arithmetic rows and series. The use of TikTok-assisted learning supplements is said to be effective if there is a significant difference and an increase in the average value of N-Gain (normalized gain) of concept understanding ability and students' interest in learning in the experimental class is significantly better than the control class. For this reason, other research is needed regarding the effectiveness of a social media in the context of learning on the ability to understand concepts and students' interest in learning by using other social media and/or other cognitive aspects or affective aspects.
Penggunaan media sosial seperti TikTok dalam pendidikan matematika dan materi barisan dan deret masih jarang dieksplorasi, meskipun memiliki potensi untuk mengubah paradigma penyajian materi tambahan. Hal ini karena umumnya materi tambahan disajikan melalui platform yang khusus untuk pembelajaran seperti Geogebra, modul pembelajaran, atau Kahoot. Penelitian ini bertujuan untuk mengetahui efektivitas suplemen pembelajaran berbantuan TikTok terhadap kemampuan pemahaman konsep dan minat belajar peserta didik pada materi barisan dan deret aritmetika dari hasil pengerjaan tes dan kuesioner melalui pre-test dan post-test yang telah dilaksanakan. Populasi dalam penelitian ini yaitu seluruh peserta didik kelas XI SMA Negeri 1 Manonjaya dan sampel dalam penelitian ini yaitu peserta didik kelas XI IPA 5 SMA Negeri 1 Manonjaya. Penelitian ini menggunakan pendekatan kuantitatif dengan metode penelitian kuasi eksperimen. Hasil dari penelitian ini, yaitu: 1) penggunaan suplemen pembelajaran berbantuan TikTok efektif untuk meningkatkan kemampuan pemahaman konsep peserta didik pada materi barisan dan deret aritmetika; dan 2) penggunaan suplemen pembelajaran berbantuan TikTok tidak efektif untuk meningkatkan minat belajar peserta didik pada materi barisan dan deret aritmetika. Penggunaan suplemen pembelajaran berbantuan TikTok dikatakan efektif apabila terdapat perbedaan yang signifikan dan peningkatan nilai rata-rata N-Gain (gain ternormalisasi) kemampuan pemahaman konsep maupun minat belajar peserta didik pada kelas eksperimen lebih baik secara signifikan dibandingkan kelas kontrol. Untuk itu, diperlukan penelitian lain mengenai efektivitas suatu media sosial dalam konteks pembelajaran terhadap kemampuan pemahaman konsep dan minat belajar peserta didik dengan menggunakan media sosial lain dan/atau aspek kognitif atau aspek afektif lain.