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DIVERSITY OF MAKROZOOBENTHOS IN THE FISH-SHRIMP POND AREAS IN ULEE MATENG VILLAGE Gilang Pradana; Chairunas Adha Putra; Mustaqim Mustaqim; Rizal Mukra; Rini Hafzari
JBIO: jurnal biosains (the journal of biosciences) Vol 10, No 1 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v10i1.60306

Abstract

Makrozoobenthos plays a crucial role in ecosystems as producers, primary consumers, and decomposers or detritus that can degrade organic compounds into inorganic ones. As primary consumers, the role of makrozoobenthos is vital for the survival of wildlife, especially various species of shorebirds commonly found in coastal areas and fish-shrimp pond areas. The aims of this research is determining the abundance of makrozoobenthos (ind/m3) and ecological index at the pond in Ulee Matang Village. The diversity of macrozoobenthos species in the area consists of 12 species of three phylum and six classes. The abundance of macrozoobenthos on two type of pond (fish and shrimp) are ranging from 892 ind/m3 to 1400 ind/m3. The Arthropoda phylum, abundant in the research area, notably featured the Water Flea Daphnia sp. that serving as a primary food source for fish and shrimp prior to the introduction of fish and shrimp seeds. This suggests a significant role of arthropods in the food chain, supporting not only fish and shrimp but also macrozoobenthos and shorebirds.
Tantangan Dan Strategi Guru Dalam Pembuatan Materi Pemantik Berbasis PBL Di SMAS 1-2 Kartika Medan: (Teacher Challenges and Strategies in Making PBL-Based Lighting Materials at SMAS 1-2 Kartika Medan) Lisa Asmida; Robella Sulastri Sitanggang; Stephanie Agustin Sianturi; Rizal Mukra
BIODIK Vol. 10 No. 2 (2024): June 2024
Publisher : Program Studi Pendidikan Biologi FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biodik.v10i2.33896

Abstract

The right learning strategy can improve teaching effectiveness. In learning, there are several goals that must be achieved. Of course, in PBL (Problem Based Learning) based biology learning, there are many obstacles faced by teachers in achieving their learning goals, the weakness of making lighter materials designed by teachers with various student characteristics.  The method used in this research is a qualitative method in the form of interviews and observations that have been carried out at SMAS Kartika 1-2 Medan which is located on Jl. Brigadier General H.A.Manav Rubis, Central Helvetian District. Medan Helvetia, Medan City, North Sumatra on March 26, 2024 with the subject of biology teacher research class XI IPA. Based on the analysis of the existing problems, there are challenges in making lighter materials with different student characteristics. It can be concluded that teachers have difficulty in making lighter materials with various student characteristics as a form of stimulation to encourage active participation in the student learning process in order to achieve the objectives of learning. abstrak. Strategi pembelajaran yang tepat dapat meningkatkan efektivitas pengajaran. Dalam belajar, ada beberapa tujuan yang harus dicapai. Tentunya dalam pembelajaran biologi berbasis PBL (Problem Based Learning) banyak kendala yang dihadapi guru dalam mencapai tujuan pembelajarannya, kelemahan pembuatan materi pemantik yang dirancang oleh guru dengan berbagai karakteristik siswa.  Metode yang digunakan pada penelitian ini yaitu metode kualitatif berupa wawancara serta observasi yang telah di laksanakan  di SMAS Kartika 1-2 Medan yang berlokasi di Jl. Brigadir Jenderal H.A.Manav Rubis, Distrik Helvetian Tengah. Medan Helvetia, Kota Medan, Sumatera Utara pada tanggal 26 Maret 2024 dengan subjek penelitian guru biologi kelas XI IPA . Berdasarkan hasil analisis mengenai permasalahan yang ada, terdapat tantangan dalam pembuatan materi pemantik dengan perbedaan karakteristik siswa. Dapat disimpulkan bahwa guru kesulitan dalam pembuatan materi pemantik  dengan berbagai karakteristik siswa sebagai bentuk stimulasi untuk mendorong partisipasi aktif dalam proses belajar siswa guna mencapai tujuan dari pembelajaran.
ANALYSIS OF SCIENCE PROCESS SKILLS OF HIGH SCHOOL STUDENTS IN MEDAN CITY Rizal Mukra; Yosie Ulfa Nuzalifa; Findi Septiani; Suci Rahmawati
Jurnal Pelita Pendidikan Vol 12, No 1 (2024): Jurnal Pelita Pendidikan
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpp.v12i1.58122

Abstract

This research aims to determine the results of science process skills in four state schools in Medan City. This type of research is descriptive with a quantitative approach. Samples were obtained from 4 schools using Cluster Sampling based on the criteria for State High Schools in Medan City, namely MAN 1, MAN 2, State High School No. 3, and State High School No. 4 Medan. Using science process skills test question for class XI student on Biology subject. Using descriptive analysis technique by calculating average data values. The result of this research is that students' science process skills at four state schools in Medan City average 74.74. The highest value is in the communication aspect and the lowest is in planning the experiment.