This study aims to improve the mathematical communication skills of fifth grade students in SD Negeri Kedundang through the application of cooperative learning models of Think Talk Write type. This type of research is classroom action research. The subjects in this study were 19 students. The technique used for data collection is observation and written test techniques. The research instrument is the teacher observation sheets, student observations and written tests. The data analysis technique used is descriptive quantitative and descriptive qualitative. The results of pre-action observation showed that students' communication skills were categorized as very low (47.63%) and low (38.48%). Then in the first cycle, students' mathematical communication skills on average increased from very low and low to low (22.60%), moderate (27.60), and high (22%). To strengthen the results of observations from the first cycle, the learning activities were held in the second cycle, the results of students' mathematical communication skills increased to the medium category (37.36%), high (39.47%), and very high (18.42%). Based on the results obtained it can be concluded that the application of the think talk write learning model can improve the mathematical communication skills of fifth grade students of Kedundang Elementary School.

[Bahasa]: Pembelajaran Jarak Jauh (PJJ) di masa pandemi Covid-19 menjadi salah satu penyebab munculnya kejenuhan belajar pada diri anak. Orang tua dengan tugas dan peran barunya dalam mendampingi anak selama belajar dari rumah diharapkan memiliki pengetahuan dan pemahaman bagaimana mengatasi kejenuhan belajar yang dialami oleh anak. Tujuan diselenggarakannya kegiatan pengabdian ini adalah memberikan pengetahuan dan pemahaman kepada orang tua tentang cara dan strategi dalam mengatasi kejenuhan belajar anak di masa pandemi Covid-19. Kegiatan pengabdian laksanakan dengan cara sosialisasi langsung kepada warga. Sasaran dari pengabdian ini adalah orang tua yang memiliki anak usia sekolah bertempat tinggal di Dusun Kembang Kapanewon Pengasih berjumlah 32 orang. Tahapan yang diterapkan dalam pelaksanaan kegiatan sosialisasi ini adalah persiapan, pelaksanaan, dan evaluasi kegiatan pengabdian. Berdasarkan hasil evaluasi kegiatan diperoleh disimpulkan bahwa orang tua merasakan manfaat dari kegiatan pengabdian ini dan mereka memiliki pengetahuan dan pemahaman tentang cara dan strategi dalam mengatasi kejenuhan belajar anak di masa pandemi Covid-19. Kegiatan pengabdian ini mampu membekali orang tua dalam mendampingi anak-anak mereka dalam belajar selama pendemi Covid-19. Kata Kunci: penguatan peran orang tua, kejenuhan belajar, pandemi Covid-19 [English]: Long distance learning during Covid-19 pandemic became one of the causes of children’s boring in learning. Parents with their new duties and roles in accompanying their children during learning from home are expected to have knowledge to overcome the problem.  The purpose of this community service program is to provide knowledge and understanding to parents about strategies for overcoming children's boring. The program was carried out by a direct socialization to 32 parentswho have school-age children in Dusun Kembang Kapanewon Pengasih. The program follows some stages; preparation, implementation, and evaluation. Based on the results of the evaluation, it was concluded that parents feel the benefits of this program; they have knowledge and understanding of strategies to overcome their children's problem. This community service is able to support the parents in accompanying their children during learning from home in this pandemic. Keywords: the roles of parents, boring in learning, Covid-19 pandemic

This study aims to improve the ability to understand the concept of the properties of the flat figure of fourth grade students of SD Negeri Widoro through visual learning media. This type of research is classroom action research. The subjects in this study were grade IV students of SD Negeri Widoro as many as 30 students. Data collection techniques using tests, observations, and documentation. The instrument used in the form of learning achievement tests, concept understanding tests, and observation sheets. Data analysis techniques using qualitative and quantitative. The results of observation before the action showed that the average comprehension ability of students 'mathematical concepts was 65.67, which was included in the sufficient category. Then in the first cycle, the ability to understand students' mathematical concepts on average increased from the low to the high categories (understanding ability average concept of 74.48. To strengthen the observations of the first cycle, learning activities continued with the second cycle, the results of understanding the ability of mathematical concepts increased from 74.48 to 84.53 in the high category, while students' learning completeness in the first cycle was 73.33 in cycle II increased to 76.67 and has met the minimum completeness criteria in the material properties of flat shape. Based on the results of the research it can be concluded that the use of visual learning media can improve the understanding of mathematical concepts of fourth grade students of SD Negeri Widoro in the school year 2019/2020.

The location of SD N Tukharjo, which is about 30 km from the Kulon Progo district center, makes educational facilities such as the regional library difficult to reach for students and teachers. The mobile library car run by the Kulonprogo regional library has also not reached SD N Tukharjo. The impact is that students and teachers only use the school library as literacy material. Currently Face-to-Face Learning (PTM) also limits the circulation of borrowed books in the school library. Through this activity, teachers will be given a deeper understanding of the nature of the literacy-numeration school program. Teachers are also encouraged to produce works in the form of fairy tale books that can add to reading material in reading corners or libraries, as well as increase skills regarding digital literacy by making literacy books based on augmented reality (AR). This service activity is carried out through four stages, namely planning, implementation, mentoring, and evaluation and reflection. From the results of the evaluation and reflection activities it can be concluded: 1) there is an increase in knowledge and digital literacy skills for teachers at SD Negeri Tukharjo, and 2) teachers at SD Negeri Tukharjo have succeeded in composing augmented reality fairy tales and have been ISBN-approved.

<p><em>The progress of knowledge in the educational process is one of the crucial needs that must be met by parents and guardians of students, especially when implementing learning from home as a result of the current Covid-19 pandemic. The Community Service Program with activities to introduce digital-based family literacy movements is one of the efforts to help the community, especially parents, to continue to understand the progress of knowledge to support the education and learning process from home. Outcomes Community service activities that have been carried out at SD Negeri Sogan aim to help improve digital literacy skills in everyday life. The subjects of the service were the guardians of the sixth grade students at SD Negeri Sogan as many as 20 people. The method of implementing service activities is carried out through 3 (three) stages, namely need assessment, implementation, and evaluation of activities. From the results of the evaluation of the implementation of the activities, it can be concluded that 1) it is effective and useful for service participants, namely the guardians of class VI Sogan Elementary School; and 2) there is an increase in the knowledge and understanding of service participants about the digital-based family literacy movement.</em><em></em></p>