Penelitian dilatarbelakangi karena saat ini dunia sedang dilanda pandemi Covid -19 yang menyebabkan beberapa negara melakukan lock down secara besar-besaran. Indonesia melaksanakan PSBB (Pembatasan Sosial Skala Besar - Besaran) di beberapa daerah dan melakukan pembelajaran di rumah. Pengaruh belajar di rumah adalah motivasi belajar rendah pada periode pandemi Covid-19. Tujuan penelitian ini adalah untuk mendeskripsikan faktor-faktor penyebab rendahnya motivasi belajar siswa periode pandemi Covid-19 di MTs Negeri 1 Tapanuli Tengah. Pendekatan penelitian menggunakan deskriptif kualitatif dan subjek penelitian adalah siswa kelas VII MTs Negeri 1 Tapanuli Tengah yang berjumlah 24 siswa. Kuisioner dan wawancara digunakan untuk mengumpulkan data. Hasil penelitian menunjukkan faktor-faktor penyebab rendahnya motivasi belajar siswa dalam pandemi Covid - 19 siswa di MTs Negeri 1 Tapanuli Tengah meliputi cita-cita atau aspirasi siswa, kemampuan siswa, kondisi siswa, kondisi lingkungan siswa, dan unsur dinamika dalam mengajar siswa. .

The background of the research is the Covid - 19 pandemic that hit all countries in parts of the world, including Indonesia. This problem creates a home learning program policy by implementing online learning. The purpose of this study was to describe the use of power points in online learning during the Covid-19 pandemic at the eleventh grade students of SMA Negeri 1 Andam Dewi.The approach of the research used qualitative descriptive by applying data analysis technique which includes data reduction, presentation, and taking conclusion. Questionnaire and interview were used in collecting the data with 15 students as the respondents. The result of the research shows 4 students are decent, 7 students are enough decent, and 4 students are less decent. It’s concluded that the average of using power point is 35.26% (enough decent).

Latar belakang penelitian ini adalah pandemi Covid-19 pada awal tahun 2020 yang menyebabkan proses belajar mengajar berubah dari offline menjadi online. Hal ini menyebabkan keaktifan siswa dalam belajar berkurang. Tujuan penelitian ini adalah untuk mengetahui minat belajar siswa pada periode pandemi Covid-19 pada siswa kelas VII SMP Negeri 1 Barus. Angket digunakan dalam pengumpulan data dan subjek terdiri dari 26 siswa. Hasil penelitian menunjukkan 34,61% kategori cukup (9 siswa), 11,24% kategori baik (3 siswa), 3,85% kategori sangat baik (1 siswa).

The low ability to understand concepts is something that is still often found in mathematics learning, especially in secondary schools. One of the reasons is the lack of learning device  that encourage students to be active in learning. Therefore, it is necessary to develop contextual learning tools in an effort to improve students' the ability understand mathematical concepts (AUMC) students. The type of research is descriptive quantitative. The research instrument was in the form of a learning device validation sheet. The research subjects were learning device which included lesson plans, student activity sheets (SAS), and students' AUMC tests. The object of research is the level of validity of the learning device. The results showed that the lesson plan with an index V of 0.72 was categorized as valid. SAS with an index V of 0.78 is categorized as valid, The AUMC-1 test and the AUMC-2 test with an index of V 0.76 and 0.74 were included in the valid category. It can be concluded that the contextual approach in improving student AUMC from the aspects of format, language and content is valid.