Articles

Found 2 Documents
Search
Journal : Bioscientist : Jurnal Ilmiah Biologi

PENERAPAN MEDIA POSTER BERBASIS INKUIRI DENGAN STRATEGI KOOPERATIF UNTUK MENINGKATKAN KECAKAPAN BERPIKIR RASIONAL SISWA SMP Jinade, Lalu; Jufri, Abdul Wahab; Ramdani, Agus
Bioscientist : Jurnal Ilmiah Biologi Vol 1, No 2
Publisher : Program Studi Pendidikan Biologi FPMIPA IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.257 KB)

Abstract

This study aims to determine the effect of the application of Inquiry-Based Media Poster (MPBI) with the cooperative strategies to improve rational thinking skills junior high school students. This study classified the type of quasi-experimental study (quasi-experimental research) with a pretest-posttest non-equivalent control group design ( 2x2x2 factorial ). The research instrument shaped test of rational thinking skills of students, in the form of a multiple choice test with every answer on the grounds. The data were analyzed by using SPSS Anacova technique 18 for Windows. The results showed that: 1) rational thinking skills that students learn to use MPBI and students learn to use drawing media different significantly; 2) rational thinking skills students learn through STAD cooperative strategies and student learning through NHT types did not different significantly; and 3) interaction between MPBI, cooperative strategy ( STAD and NHT ), and academic ability does not significantly affect rational thinking skills of students.
PENGARUH PERBEDAAN KONSENTRASI PUPUK MEDIA DIATOM DAN PUPUK KW21 TERHADAP KEPADATAN POPULASI Tetraselmis sp. DI UNIT PELAKSANA TEKNIS LOKA PENGEMBANGAN BIO INDUSTRI LAUT PUSAT PENELITIAN OCEANOGRAFI (LPBIL P2O LIPI) MATARAM Mukminah, Mukminah; Idrus, Agil Al; Ramdani, Agus
Bioscientist : Jurnal Ilmiah Biologi Vol 1, No 2
Publisher : Program Studi Pendidikan Biologi FPMIPA IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (146.755 KB)

Abstract

The present research aims at knowing: 1) the influence of different concentration of diatom media fertilizer on the population density Tetraselmis sp.; 2) the influence of different concentration of KW21 fertilizer on the population density Tetraselmis sp.; 3) an optimal concentration of diatom media fertilizer and KW21 for the population density of Tetraselmis sp. An experimental with Completely Randomized Design was conducted by treating diatom media fertilizer and KW21 fertilizer. Each of the treatments was given concentration of 0%, 25%, 50%, 75%, and 100%. The results show that the concentration of diatom media fertilizer did give any significance influence on the population density of Tetraselmis sp. It could be seen from the value of Ftest which was lower than Ftable (23,05) > 3.48) at the significance level of 5%. The concentration of KW21 fertilizer had any significance influence on population density of Tetraselmis sp. by which the value of Ftest was 10,63 and the Ftable was 3.48 at the significance level of 5%. An optimal population density of Tetraselmis sp. fell on the treatment of A1B4C1 (94.83x105 cell/ml) and A2B4C1 (91.83x105 cell/ml).