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All Journal Quagga Jurnal Pendidikan Biologi Indonesia
W. Widhorini
Universitas Kuningan
Agriculture, Biological Sciences & Forestry Education

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Interactive multimedia: Enhacing students’ cognitive learning and creative thinking skill in Arthropod material Ubung Darmawan; Sri Redjeki; W. Widhorini
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 6 No. 2 (2020): JULY
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v6i2.11370

Abstract

Interactive multimedia based on Adobe Director, as a learning medium, is important in optimizing students’ learning outcomes. This study aimed to develop interactive multimedia in Arthropod topic as a learning media based on Adobe Director in optimizing students’ cognitive learning outcomes as well as their creative thinking skills. This Research and Development (R & D) adopted Lee and Owens model. The validity of the media developed was assessed by material and media experts. The product trial was done by involving ten of X graders. The students' cognitive learning outcomes and creative thinking skills were measured using pretest and posttest. The data obtained were then analyzed using N-gain calculation. The results showed that the interactive multimedia based on Adobe Director was categorized as feasible (based on material expert) and very feasible (based on media expert). The N-gain scores of cognitive learning outcomes of C1, C2, C3, C4 were 0.70, 0.75, 0.71, and 0.56 respectively. Moreover, the N-gain scores of creative thinking skills were 0.55 (widening), 0.43 (connecting), and 0.73 (reorganizing). It can be concluded that the interactive multimedia based on Adobe Director developed is feasible and able to improve cognitive learning outcomes and students' creative thinking skills.
UJI DAYA HAMBAT EKSTRAK BAWANG MERAH (Allium cepa L.) TERHADAP PERTUMBUHAN Salmonella typhi) PADA MEDIA NUTRIENT AGAR (NA) Widhorini Widhorini; Ranti Rafianti
Quagga : Jurnal Pendidikan dan Biologi Vol 11, No 2 (2019)
Publisher : Program Studi Pendidikan Biologi, FKIP Universitas Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25134/quagga.v11i2.1877

Abstract

Salmonella termasuk dalam keluarga Enterobacteriace  merupakan bakteri patogen bagi Manusia dan hewan. Infeksi Salmonella biasa menyerang saluran pencernaan dan tak jarang pula menyebar ke seluruh organ tubuh melalui peredaran darah. Tanaman obat  yaitu macam-macam  tanaman yang memiliki fungsi dan khasiat sebagai obat  yang digunakan untuk menyembuhkan dan atau mencegah berbagai penyakit. Beberapa  tanaman obat dilaporkan mempunyai kandungan anti oksidan dan aktivitas antibakteri, salah satunya yaitu bawang merah karena mengandung efek antiseptic dan senyawa alliin. Senyawa alliin akan diubah menjadi asam piruvat, ammonia, dan alliisin sebagai antimikroba yang bersifat bakterisida. Dengan demikian penelitian ini bertujuan untuk menentukan adanya aktivitas ekstrak Bawang Merah (Allium cepa L.) terhadap pertumbuhan Salmonella typhi  No. ATCC 19430 pada media Nutrien Agar (NA). Ekstraksi dilakukan dengan cara maserasi menggunakan pelarut etanol 70%.pengujian ini menggunakan konsentrasi 5%, 10%, 20%, 30%,40%.  Hasil penelitian menunjukkan nilai optimum pengujian ekstrak antibakteri pada bakteri  Salmonella typhy No. ATCC 19430 terdapat pada konsentrasi 40%, hal ini menunjukan semakin besar konsentrasi ekstrak tanaman uji berbanding lurus dengan besaran daya hambat terhadap bakteri Salmonella typhi No. ATCC 19430.Kata kunci: Ekstrak Bawang Merah (Allium cepa L.), Salmonella typhy No. ATCC 19430, Antibakteri.
Co-Authors Ranti Rafianti Sri Redjeki Ubung Darmawan