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All Journal Jurnal Pendidikan IPA Indonesia Indonesian Journal of Mathematics and Natural Sciences
E. S. Rahayu
Jurusan Biologi, FMIPA, Universitas Negeri Semarang, Indonesia
Education Mathematics

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Student’s Science Literacy in the Aspect of Content Science? Fakhriyah, F.; Masfuah, S.; Roysa, M.; Rusilowati, A.; Rahayu, E. S.
Jurnal Pendidikan IPA Indonesia Vol 6, No 1 (2017): April 2017
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v6i1.7245

Abstract

The fundamental issue is the growing use of scientific information possessed by students to solve problems in daily life and produce useful scientific source from scientific literacy. The purpose of the research was to analyze and describe the ability of a student science concepts from the aspect of scientific literacy that includes aspects of scientific knowledge, scientific competence, scientific context as well as the factors that influence the students’ science literacy skills. This research was quantitative descriptive analysis. The instrument used was a matter of objective 40 along with the reasons of the physics concept and biology concepts that are used to measure aspects of scientific knowledge, scientific competence, and scientific context, while the students’ attitudes towards science and science teaching and learning strategies measured by questionnaire instrument. Instruments used included multiple-choice test questions reasoned and questionnaires (the attitude of science and science teaching and learning strategies). Based on data analysis it was known that the ability of science literacy PGSD UMK students varied, 66.2% of students were at the level of nominal and 33.8% of the students were at the functional level. It showed that 66.2% of students already had a concept for connecting science with other disciplines, could write a scientific term, but students still had misconceptions, while 33.8% of students considered the theory and explained concepts correctly, but they had a limited understanding and were difficult to connect to the concept of his own opinion.
RESPON PEMBENTUKAN KALUS KORO BENGUK (MUCUNA PRURIENS L.) PADA BERBAGAI KONSENTRASI 2,4-D DAN BAP Ariani, R.; Anggraito, Y. U.; Rahayu, E. S.
Jurnal MIPA Vol 39, No 1 (2016): April 2016
Publisher : Jurnal MIPA

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Abstract

Penelitian ini bertujuan untuk menentukan konsentrasi 2,4-dichlorophenoxy acetic acid (2,4-D) dan benzylamino purin (BAP) optimal dalam pembentukan kalus dari eksplan setengah biji koro benguk (Mucuna pruriens L.). Rancangan penelitian yang digunakan ialah rancangan acak lengkap dengan dua faktor, yaitu konsentrasi 2,4-D (0,5 ppm, 1 ppm, 1,5 ppm, 2 ppm) dan BAP (1 ppm, 2 ppm, 3 ppm) untuk induksi kalus. Hasil induksi dipindahkan pada media MS0, kemudian dilanjutkan pada media MS yang ditambah BAP, IBA, GA. Parameter yang diamati adalah waktu terbentuk kalus, persentase eksplan berkalus, berat kalus per eksplan, warna dan tekstur kalus. Pada tahap induksi kalus, BAP 3 mg/l menyebabkan pertumbuhan kalus terberat dibandingkan konsentrasi lainnya. Sementara pada tahap diferensiasi, konsentrasi BAP 3 ppm dan 2,4-D 1 ppm merupakan konsentrasi yang mengakibatkan persentase kalus sehat tertinggi. Perlakuan 2,4-D 1 ppm dan BAP 3 ppm menghasilkan kalus putih transparan, kompak, dan berat kalus tertinggi (0,49 gram). Konsentrasi tersebut merupakan konsentrasi yang disarankan untuk menumbuhkan kalus koro bengukThis research aimed to determine the optimal concentration of 2,4-D and BAP in callus formation from an explant of half seed Mucuna pruriens. The research design was used completely randomized design with two factors: the concentration of 2,4-D (0.5 ppm, 1 ppm, 1.5 ppm, 2 ppm)  and BAP (1 ppm, 2 ppm, and 3 ppm) for callus inductions. The induction result is moved to MS0 medium, then continued to MS medium which was added by BAP, IBA, GA. The measured parameters were: callus formation time, the percentage of callus explants, the weight of callus for each explants, color and texture of callus. During induction phase BAP 3 ppm caused the heaviest callus growth than others, meanwhile in differentiation phase BAP 3 ppm and 2,4-D 1 ppm caused the highest percentage of healthy callus. Treatment of 2,4-D 1 ppm and BAP 3 ppm produced white and compact transparent callus with weight 0.49 grams. This concentration was recommended to grow the M. pruriens callus.
Student’s Science Literacy in the Aspect of Content Science? Fakhriyah, F.; Masfuah, S.; Roysa, M.; Rusilowati, A.; Rahayu, E. S.
Jurnal Pendidikan IPA Indonesia Vol 6, No 1 (2017): April 2017
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v6i1.7245

Abstract

The fundamental issue is the growing use of scientific information possessed by students to solve problems in daily life and produce useful scientific source from scientific literacy. The purpose of the research was to analyze and describe the ability of a student science concepts from the aspect of scientific literacy that includes aspects of scientific knowledge, scientific competence, scientific context as well as the factors that influence the students’ science literacy skills. This research was quantitative descriptive analysis. The instrument used was a matter of objective 40 along with the reasons of the physics concept and biology concepts that are used to measure aspects of scientific knowledge, scientific competence, and scientific context, while the students’ attitudes towards science and science teaching and learning strategies measured by questionnaire instrument. Instruments used included multiple-choice test questions reasoned and questionnaires (the attitude of science and science teaching and learning strategies). Based on data analysis it was known that the ability of science literacy PGSD UMK students varied, 66.2% of students were at the level of nominal and 33.8% of the students were at the functional level. It showed that 66.2% of students already had a concept for connecting science with other disciplines, could write a scientific term, but students still had misconceptions, while 33.8% of students considered the theory and explained concepts correctly, but they had a limited understanding and were difficult to connect to the concept of his own opinion.
RESPON PEMBENTUKAN KALUS KORO BENGUK (MUCUNA PRURIENS L.) PADA BERBAGAI KONSENTRASI 2,4-D DAN BAP Ariani, R.; Anggraito, Y. U.; Rahayu, E. S.
Indonesian Journal of Mathematics and Natural Sciences Vol 39, No 1 (2016): April 2016
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk menentukan konsentrasi 2,4-dichlorophenoxy acetic acid (2,4-D) dan benzylamino purin (BAP) optimal dalam pembentukan kalus dari eksplan setengah biji koro benguk (Mucuna pruriens L.). Rancangan penelitian yang digunakan ialah rancangan acak lengkap dengan dua faktor, yaitu konsentrasi 2,4-D (0,5 ppm, 1 ppm, 1,5 ppm, 2 ppm) dan BAP (1 ppm, 2 ppm, 3 ppm) untuk induksi kalus. Hasil induksi dipindahkan pada media MS0, kemudian dilanjutkan pada media MS yang ditambah BAP, IBA, GA. Parameter yang diamati adalah waktu terbentuk kalus, persentase eksplan berkalus, berat kalus per eksplan, warna dan tekstur kalus. Pada tahap induksi kalus, BAP 3 mg/l menyebabkan pertumbuhan kalus terberat dibandingkan konsentrasi lainnya. Sementara pada tahap diferensiasi, konsentrasi BAP 3 ppm dan 2,4-D 1 ppm merupakan konsentrasi yang mengakibatkan persentase kalus sehat tertinggi. Perlakuan 2,4-D 1 ppm dan BAP 3 ppm menghasilkan kalus putih transparan, kompak, dan berat kalus tertinggi (0,49 gram). Konsentrasi tersebut merupakan konsentrasi yang disarankan untuk menumbuhkan kalus koro bengukThis research aimed to determine the optimal concentration of 2,4-D and BAP in callus formation from an explant of half seed Mucuna pruriens. The research design was used completely randomized design with two factors: the concentration of 2,4-D (0.5 ppm, 1 ppm, 1.5 ppm, 2 ppm)  and BAP (1 ppm, 2 ppm, and 3 ppm) for callus inductions. The induction result is moved to MS0 medium, then continued to MS medium which was added by BAP, IBA, GA. The measured parameters were: callus formation time, the percentage of callus explants, the weight of callus for each explants, color and texture of callus. During induction phase BAP 3 ppm caused the heaviest callus growth than others, meanwhile in differentiation phase BAP 3 ppm and 2,4-D 1 ppm caused the highest percentage of healthy callus. Treatment of 2,4-D 1 ppm and BAP 3 ppm produced white and compact transparent callus with weight 0.49 grams. This concentration was recommended to grow the M. pruriens callus.
Co-Authors A. Rusilowati F. Fakhriyah M. Roysa, M. R. Ariani, R. S. Masfuah Y. U. Anggraito, Y. U.