Scientific writing is a familiar academic activities to students of higher education. Since the beginning of their academic life in higher education, students have been faced with various tasks that involve scientific writing as reports. In addition, writing scientific papers is one of requirements for students in order to obtain academic degree in higher education. However, some evidenc and results of several previous studies show that students' writing skills are still low. Even though there have been supporting courses to support students in compiling scientific papers, many students consider writing scientific papers as a tough task. Therefore, it is needed for training activities to improve students' knowledge and abilities in writing scientific papers. This scientific writing training is part of service activity. The training was carried out in five meetings, they were 1) providing material on scientific writings and writing methods, 2) selecting ideas and titles of works, writing backgrounds, reviewing literature and writing references, 3) writing research methods, 4) writing results and discussions, and closing, 5) review and finalization of the works. The results of this training activity shows that students' interest in writing scientific papers is quite high. However, students' initial knowledge about scientific writing and writing methods is still low. Therefore, this scientific writing training activity is necessary. The posttest results shows that 90% of the participants experiences an increase in their writing knowledge and skills. These results indicate that this training activity is effective in helping students improve their knowledge and ability to write scientific papers.

This study aims to learn the feasibility of e-comic media  in MTsN 12 Jombang. The method of this research is Research and Development (RD). The development model used is the ADDIE development model with stages: analysis (analysis), design (design), development (development), implementation (implementation), and evaluation (evaluation). The subjects of this research  were students of class VII D of MTsN 12 Jombang. The research instruments used in data collection were (1) questionnaire sheets and (2) students' response results. The results showed that the validity of the learning media obtained was based on the validation of the material experts showed 4.2 with a valid category, assessment of the validation of the material experts showed 4.8 with a very valid category, validation of the existing media experts showed 4.53 with a very valid category and participant responses students there are 94% with the category of strongly agree.

Mathematics has a very important role in everyday life, where almost everything around us is related to mathematics, including culture in our society, especially concept of geometric shapes. However, the mathematics lessons that students learn at school are sometimes different from the mathematical problems encountered in everyday life, which makes it difficult for students to relate mathematical concepts to problems from real-world contexts. Therefore, teachers and educators could employ innovative and relevant teaching materials, which is also intended to increase the motivation of students to learn the theoretical material presented. Which is an abstract mathematical concept. One of teaching materials that can be used is the Student Worksheet (LKPD). In order for LKPD to be relevant to the real life of students, mathematical activities in LKPD are arranged using activities related to the daily lives of students, especially for junior high school students (SMP/MTs). Therefore, this research is about the development students’ worksheet in Triangles and Quadrilaterals concept within contextual problems for VII grade students. The type of research used is Research and Development (R&D) research, by adapting ADDIE model. The study was conducted at a class of VII at MTsN 4 Jombang. The results show that the Triangles and Quadrilaterals worksheet within contextual problems are valid and practical. Besides that, the results of the implementation of the Triangles and Quadrilaterals worksheet within contextual problems in this study showed that only focus on mathematical activities to solve procedural problems without relating them to real contexts in everyday life.

Mathematics learning has important and strategic roles in Indonesian education-system. One of mathematical subjects learnt at school is geometry. Many real-life contexts are related to concept of geometry, especially surface-area and volume. However, some previous studies show that many students have difficulties learning concepts of surface-area and volume of prisms and pyramids. This due to learning that only emphasizes on memorizing formulas makes the learning itself less meaningful for students, so students’ learning motivation is low. One alternative that can be done is the use of student worksheets (LKPD). This worksheet is based on a learning approach that facilitates students to build their understanding independently and present meaningful mathematical activities. Therefore, in this study, discovery-learning based worksheets were developed for surface-area and volume of prisms and pyramids. This study uses Research and Development method within ADDIE model. Result of this study shows that LKPD is valid. This is indicated by results of expert validation wich obtains 83.09% that meets valid criteria. Moreover, the assessment of experts on the aspect of "the suitability of LKPD with concept of discovery-learning" obtained 81.25% which indicates that the mathematical concept and activities used in the worksheets is in accordance with the concept of discovery-learning.

Hand sanitizer is one of the antiseptic ingredients in the form of a gel that is often used by many people as a practical hand washing medium. Hand sanitizer can be used anytime and anywhere, for example after handling money, before eating, after using the toilet and after taking out the trash. Partner problems in this activity are (1) partners do not know about the importance of preventing the spread of the Corona Virus (Covid-19) and implementing health protocols. (2) partners do not yet know the benefits and use values ​​of betel leaf plants, kaffir lime leaves, lime juice and lemongrass stalks as natural hand sanitizers. (3) lack of knowledge and skills of partners regarding the manufacture of this natural hand sanitizer. The purpose of this activity is as follows (1) to educate the public about the importance of preventing the spread of the Corona Virus (Covid-19) and implementing health protocols. (2) to increase the use value of betel leaf plants, kaffir lime leaves, lime juice and lemongrass stalks as natural hand sanitizers. (3) to improve the knowledge and skills of the community as well as to improve the community's economy during the pandemic. This service uses the Asset Based Community Development (ABCD) approach. The ABCD approach is an approach that leads to an independent and maximum understanding and internalization of assets, strengths, potential, and utilization. The conclusion obtained from this service activity is that there is an increase in the knowledge and skills of the Gabusbanaran Village community about how to make hand sanitizers from natural ingredients so that they can reduce additional costs for purchasing hand sanitizer products themselves in tackling the spread of Covid-19.