<span lang="EN-US">This study described the implementation of STEM-based science learning and performance assessment to the improvement of students’ thinking skill in Aceh, Indonesia. The purposive sampling technique was employed in this descriptive research. The respondents were 300 students at grade 11th academic year 2019/2020 which representing five public high schools in Aceh, Indonesia. The instruments used to measure the effectiveness of the implementation of STEM-based science learning were the rubric of habits of mind, observation sheets of performance assessments, and questionnaires. The finding presented the implementation of STEM-based science learning was able to habituate and develop students' habits of mind with an average score of 0.71 which included into high category. The average value of the overall STEM-based science learning implementation for the formation of habits of mind is 95.98% which categorized as good. It can be concluded that there is the success of researchers in implementing STEM-based science learning to form students' habits of mind.</span>

Strategi pencegahan penyebaran covid-19 di tingkat satuan pendidikan wajib ditingkatkan. Hal ini untuk mengedukasi siswa menerapkan perilaku hidup bersih dan sehat karena anak-anak yang merupakan golongan rentan terpapar dan tertular Covid-19. Banyak lembaga pendidikan kewalahan dalam membuat pengawasan terhadap anak-anak untuk pencegahan penularan covid-19. Pengabdian masyarakat ini bertujuan memberikan strategi pencegahan virus covid-19 pada Sekolah Dasar di Kec. Pante Bidari, Aceh Timur. Kegiatan PKM ini dilakukan dengan memberikan teori dan strategi pencegahan virus covid-19 pada 4 (empat) Sekolah Dasar yaitu SDN Pante Panah, SDN Paya Demam Dua, SDN Lhoknibong, dan SDN Bandar Baru Kabupaten Aceh Timur. Metode yang digunakan dalam pengabdian ini adalah pendekatan kualitatif dengan jenis penelitian deskriptif. Subjek dalam pengabdian ini adalah guru kelas dan siswa di wilayah kabupaten Aceh Timur. Tahap pelaksanaan dilakukan dengan tiga tahapan, yaitu survei, koordinasi, dan monitoring dan evaluasi. Tahap pertama merupakan tahap persiapan. Pada tahap ini kelompok pengabdi melakukan survey pendahuluan untuk melihat kondisi di lapangan mengenai strategi pencegahan virus covid-19 pada sekolah dasar di Kec. Pante Bidari, Aceh Timur dihasilkan oleh masyarakat. Tahapan kedua strategi yang kreatif dan inovatif sebagai upaya pencegahan Covid-19. Tahap yang terakhir adalah tahap monitoring dan evaluasi. Pada tahap ini dilakukan evaluasi atas hasil yang telah dicapai oleh masyarakat. Berdasarkan hasil pengabdian, disosialisasikan sepuluh strategi pencegahan covid- 19, yaitu rajin mencuci tangan dengan benar, menggunakan hand sanitizer jika tidak ada air dan sabun,  menggunakan masker secara benar, menggunakan face shield, penyemprotan disinfektan, memberi vitamin sebagai imun booster, menggunakan tisu saat bersin dan batuk, menghindari bepergian selama pandemi, dan menghindari kontak langsung dengan orang lain.

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The aims of this study is to explore the effects of three different forms multimedia teaching to critical thinking skills of students in the context of the science laboratory. The three forms of multimedia teaching materials are static images, videos, and animations, that used to teach science trial for 120 students from Elementary School teacher education university of Samudra, Langsa. The method used in this study is a quasi-experiment with pretest to posttest control group design. The pretest method was given to college students to determine their learning achievement before given the application multimedia to experiment science during learning process for the experimental group and also the implementation multimedia and learning feedback from a list of several questions. Descriptive statistics and ANOVA were also given to analyze data that have been collected. This study shows that videos and animations have bigger effects in critical thinking skills in the context of science laboratories rather than static images and observation performance. In addition, animation video in presentation can help students to understand the experiment and learning science easily.

The East Aceh Regency Community, Women's and Family Empowerment Agency (BPMPKS) through the field of women's empowerment currently has 21 productive business groups of poor women that have been running since 2010 until now. The productive business groups of these poor women have various types of business products that are run such as making cookies, presto milkfish, pandanus matting, grocery business, salted fish production, making organic fertilizers and others. One of the matting groups that has grown rapidly from the production side is the bungong chirih women's business group, which until now has more than 20 members. The results of the woven mat products provided are in great demand by the community because of the reliability quality can be proven. But from the marketing side it still needs further improvement to be able to develop. The current PKM activity is to provide e-marketing-based entrepreneurship training. This is because so far the marketing of the production of woven mats still revolves around the local scale. So with the entrepreneurship training, it is expected that the marketing scale can be broader and reach the five countries. Based on the results of this training, every member of the Chirih Bungon group has been able to use marketing media on line to market the matting products.