Permasalahan dari penelitian tindakan kelas ini adalah bagaimana aktivitas siswa dan hasil belajar IPA Terpadu serta respon siswa pada pokok bahasan Klasifikasi Makhluk Hidup melalui pendektan Peta Konsep di kelas VII-2 MTsN 2 Aceh Besar. Tujuan penelitian untuk mendeskripsikan aktivitas siswa, mengetahui hasil belajar siswa, dan mengetahui respon siswa terhadap pembelajaran di kelas VII-2 MTsN 2 Kabupaten Aceh Besar. Penelitian tindakan kelas (PTK) dengan menerapkan pendekatan Peta Konsep, dilakukan dalam 2 siklus. Subjek penelitian adalah siswa kelas VII-2 semester ganjil berjumlah 32 siswa. Teknik pengumpulan data melalui observasi, tes uji kompetensi, dan angket, selanjutnya data dianalisis secara kualitatif. Hasil penelitian menunjukan bahwa aktivitas siswa meningkat untuk mengerjakan tugas-tugas, berpikir (berdiskusi), dan menjawab soal-soal secara berkemlompok. Rata-rata prosentase aktivitas siswa sebelum PTK 60,43% meningkat menjadi 72,92% pada siklus I dan 83,13% pada siklus II. Rata-rata ulangan harian sebelum tindakan 55,71 meningkat menjadi 68,64 pada siklus I dan 79,33 pada siklus II. Berdasarkan fakta tersebut dapat disimpulkan bahwa PTK dengan pendekatan peta konsep  meningkatkan minat dan hasil belajar IPA pada pokok bahasan Klasifikasi makhluk Hidup di MTsN 2 Kabupaten Aceh Besar.

This research investigated the effect of the concentration of seawater (AL) and light intensity on seedling growth of A. nilotica. The research method used a randomized block design (RBD) factorial design with two factors. The first factor is seawater with 6 levels of concentration (AL 0%, 20% AL, AL 40%, AL 60%, 80% AL and AL 100%). The second factor is the shade with three levels of shade (55% NG, NG 65%, and 75% NG). The results showed: (1). Single factor shade and seawater has an inhibitory effect on the percentage of deaths tillers of A. nilotica, each treatment have different effects. The most effective combination inhibited A. nilotica growth was NG3AL5 (shade 75% and 100% concentration of seawater). (2). Seawater treatment affects the tissue organ damage of A. nilotica plants, especially roots and stems, therefore at 14 MST most of the test plants die for not being able to tolerate the treatment, (3). The analysis results of the soil physical and chemical parameters showed that no symptoms of poisoning the soil due to seawater treatment in the test medium, as shown by the high levels of every physical and chemical parameter of land far above the exposure limit.

Syiah Kuala University is one of the public universities in Banda Aceh, where each office unit has an Open Green Space (OGS). The green space is planted by plants, both intentionally and wildly. There are several plant habitus, including herbs, shrubs, and trees. There is no information on the list of flora species on the campus of Syiah Kuala University. Therefore, it is necessary to carry out an inventory of plant species in the campus area has been carried out. The study was conducted using a survey method at 21 observation sites. The survey results show that there are 130 species from 41 families. Species with the highest number of species were Poaceae, Asteraceae, and Arecaceae. The most common habitats found were trees (50.77%), herbs (28.46%), shrubs (16.92%), and bush (3.86%). The species are trees intentionally planted for the open green space to function as a shade or shelter.