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Pengaruh Model Pembelajaran Project-Based Learning Berbantuan Scrapbook Terhadap Hasil Belajar Siswa pada Materi Sistem Ekskresi Manusia Triwulandari Saleh; Debby J. J. Rayer; Nonny Manampiring
Jurnal Cakrawala Pendidikan dan Biologi Vol. 2 No. 1 (2025): Maret: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i1.174

Abstract

This study aims to find out whether Project Based Learning using scrapbooks has an effect on improving student learning outcomes in human excretory system material at SMA Negeri 1 Motoling. This study was conducted using an experimental method with a pre-test post-test control group design research design. The sample in this study consisted of two classes, namely class XI 5 as an experimental class with 20 students and class XI 7 as a control class with 20 students. The results of the research in the experimental class found that the maximum post-test score was 90, and the minimum score was 65 with an average number of 77. In the control class, the maximum post-test score was 85 and the minimum score was 20 with an average of 46.26. Thus, it can be concluded that there is a significant influence of the use of the project-based learning model using scrapbooks on student learning outcomes at SMA Negeri 1 Motoling on the material of the human excretory system.
Keanekaragaman Echinodermata dan Hubungannya dengan Komposisi Lamun pada Zona Intertidal Pantai Kiama, Sulawesi Utara Julianti Malensang; Revolson A. Mege; Nonny Manampiring
Switch : Jurnal Sains dan Teknologi Informasi Vol. 3 No. 5 (2025): Switch : Jurnal Sains dan Teknologi Informasi
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/switch.v3i5.686

Abstract

Seagrass beds are coastal ecosystems that have important ecological functions as a provider of habitat, food sources, protection, and reproductive areas for various marine life including Echinoderms. This study aims to analyze the diversity of Echinoderms and their relationship with seagrass distribution in Kiama Beach, Melonguane District, Talaud Islands Regency. The research was conducted in the intertidal zone at three stations using the exploration method with purposive sampling technique. Each station is divided into three plot installation zones measuring 4 × 4 meters, with observations made at low tide. Environmental parameters (temperature and pH), type and number of Echinoderm individuals, and seagrass species were recorded and analyzed using the Shannon-Wiener diversity index and product moment correlations. The results showed that the Echinoderma community consists of two classes and five species: Archaster typicus, Linckia laevigata, Culcita novagueniae, Holothuroidea scabra, and Holothuroidea forskali, with the Asteroidea class dominating (75%). The diversity index (H') value was relatively low at all stations with a range of 0.6261–0.6631. Seagrass beds consist of five species, namely Halophila ovalis, Cymodocea rotundata, Thalassia hemprichii, Halodule uninervis, and Syringodium isoetifolium, with the highest abundance found in Halophila ovalis. Correlation results showed a strong to very strong relationship between the abundance of Echinoderms and certain seagrass types (r = 0.77–0.99) as well as a strong correlation at the overall level of the station (r = 0.74). This study confirms that the presence and abundance of Echinoderms is greatly influenced by the density and composition of seagrass species. These findings provide important baseline data for the management and conservation of seagrass beds as a support for the sustainability of coastal biodiversity.