Kegiatan Pengabdian pada Masyarakat ini berbentuk pelatihan online dan bertujuan untuk berbagi pengetahuan tentang teknis pelaksanaan, silabus, serta tips dan trik di dalam menyelesaikan soal-soal pada Kompetisi Sains Nasional (KSN) tingkat SMP di bidang Matematika. Kegiatan ini dilakukan selama dua hari pada bulan Juli tahun 2021. Peserta kegiatan ini adalah para guru matematika dan siswa-siswi di SMP IT Qardhan Hasana, Kota Banjarbaru, Provinsi Kalimantan Selatan, yang terdiri dari 3 orang guru matematika dan 74 orang siswa. Pelatihan ini berjalan lancar dan dapat menjadi solusi bagi sulitnya pelaksanaan kegiatan pelatihan KSN di sekolah di masa pandemi Covid-19. Metode yang digunakan diantaranya adalah ceramah, diskusi, dan latihan soal. Hasil kegiatan ini, pemateri memberikan teknik-teknik dalam menyelesaikan soal-soal KSN diantaranya adalah mencari pola, menggunakan variabel, melangkah mundur, dan menggunakan ilustrasi. Dari kegiatan ini, panitia mengidentifikasi 10 dari 74 orang siswa yang berbakat dan merekomendasikan ke pihak sekolah untuk dibina lebih lanjut untuk mengikuti KSN Bidang Matematika. Hal ini sesuai dengan ketentuan KSN tahun 2021, yaitu setiap sekolah diwakili maksimal 9 (sembilan) peserta. Setiap peserta hanya diperbolehkan mengikuti 1 (satu) bidang lomba dan setiap bidang lomba maksimal 3 (tiga) peserta. Selanjutnya, kegiatan ini dapat dimanfaatkan dan dikembangkan oleh para guru matematika di sekolah tersebut untuk melakukan pembinaan kepada para siswa di dalam menghadapi KSN bidang Matematika. Pihak SMP IT Qardhan Hasana mengharapkan agar kegiatan ini dapat dilaksanakan secara rutin setiap tahun dalam bentuk kerja sama antara pihak sekolah dengan pihak Program Studi Matematika FMIPA ULM. This Community Service activity is in the form of online training. It aims to share knowledge about technical implementation, syllabus, and tips and tricks in solving problems in the National Science Competition (NCS) for junior high school mathematics. This activity was carried out for two days in July 2021. Participants in this activity were mathematics teachers and students at SMP IT Qardhan Hasana, Banjarbaru City, Province of South Kalimantan, which consisted of 3 mathematics teachers and 74 students. This training ran smoothly and could be a solution to the difficulty of implementing KSN training activities in schools during the Covid-19 pandemic. The methods used include lectures, discussions, and practice questions. The results of this activity show that the presenters provide techniques for solving KSN questions, including looking for patterns, using variables, stepping back, and using illustrations. The committee identified 10 out of 74 gifted students from this activity and recommended the school be further nurtured to participate in KSN in Mathematics. This is following the provisions of the 2021 KSN, which is that each school is represented by a maximum of 9 (nine) participants. Each participant is only allowed to participate in 1 (one) competition field, and each competition field is a maximum of 3 (three) participants. Furthermore, this activity can be utilized and developed by mathematics teachers at the school to guide students in facing KSN in the field of Mathematics. The SMP IT Qardhan Hasana hopes that this activity can be carried out regularly every year in collaboration between the school and the Study Program of Mathematics, FMIPA ULM.

Coronavirus disease 2019 or also known as Covid-19 is a disease caused by a type of coronavirus called Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) or better known as the corona virus. Covid-19 become a pandemic since 2020 and has been widely studied, one of which is in mathematical modeling. In this study, the spread of Covid-19 is modeled using the SVEIR (Susceptible, Vaccination, Exposed, Infected, and Recovered) model. The purpose of this study explains the formation of the Covid-19 SVEIR model, determines the equilibrium point, determines the basic reproduction number, and analyzes the stability of the Covid-19 SVEIR model. The purpose of this study explains the formation of the Covid-19 SVEIR model, determines the equilibrium point, the basic reproduction number, and analyzes the stability of the Covid-19 SVEIR model. The result of this study is to explain the formation of the Covid-19 SVEIR model and obtained two equilibrium points, the disease-free equilibrium point and the endemic equilibrium point. Furthermore, the basic reproduction number  is obtained through the Next Generation Matrix method. The results of the stability analysis at the disease-free equilibrium point were locally asymptotically stable with conditions  while at the endemic equilibrium point local asymptotically stable with conditions . The natural death rate is greater than the effective contact rate. A numerical simulation is presented to show a comparison spread of Covid-19 by providing different levels of vaccine effectiveness using the Runge-Kutta Order method.