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Articles
ZEOLITE: STRUCTURE AND POTENTIAL IN AGRICULTURE

Ismawati, Riva ( Universitas Tidar )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

Zeolite is a hydrated aluminosilicate mineral with a three-dimensional structure. The unique zeolite crystal structure makes zeolites have cation boundary properties, adsorption, molecular sieving, catalysts, capture, and release of air molecules. Many studies in various fields including agriculture have been done by utilizing the properties of the zeolite. Indonesia has an abundant source of zeolite reserves and extensive agricultural areas, making it possible to apply zeolite research results to support sustainable agricultural activities. In this article will discuss the potential utilization of zeolite in agriculture based on the studies that have been done.

CALCIUM OXIDE CHARACTERISTICS PREPARED FROM AMBUNTEN’S CALCINED LIMESTONE

Munawaroh, Fatimatul ( Natural Science Education Study Program, Faculty of Education, University of Trunojoyo Madura ) , Muharrami, Laila Khamsatul ( Natural Science Education Study Program, Faculty of Education, University of Trunojoyo Madura ) , Triwikantoro, Triwikantoro ( Physics Department, Faculty of Natural Science, Sepuluh Nopember Institute of Technology ) , Arifin, Zaenal ( Physics Department, Faculty of Natural Science, Sepuluh Nopember Institute of Technology )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

Calcium oxide (CaO) and calcium carbonate (CaCO3) are widely used in industry. CaO and CaCO3 can be synthesized or derived from limestone. The purpose of this study to determine the characteristics of CaO calcined limestone from Ambunten Sumenep. Lime in calcined at 850 ° C for 6 hours. Characterization of X-ray fluorescence (XRF) was conducted to determine the chemical composition of limestone, X-ray diffraction test (XRD) to find the lime crystalline phase and FTIR test to determine the absorption of wave number. XRF test results showed that the limestone chemical composition consisted of Ca of 95.37% as the dominant element, Mg of 4.1%, Fe 0.17% and Y by 0.39%. The XRD test results showed that the limestone crystal phase is ankerite (Ca [Fe, Mg] [CO3] 2) and after the calcined phase calcination is vaterite (Ca [OH] 2), calcite (CaO) and calcite (CaCO3). While the FTIR test results show that the CaO spectra are seen at 3741.24, 1417.12 and 874.14 cm-1.

THE DEVELOPING OF LEARNING MEDIA BASED ARTICULATE STUDIO’13 IN ASSESSMENT COURSE AT BIOLOGY EDUCATION STUDY PROGRAM

Jayawardana, Hepta Bungsu Agung ( Pendidikan IPA Fakultas Ilmu Pendidikan Universitas Trunojoyo Madura ) , Trianggono, Mochammad Maulana ( Biology Education Study Program, Faculty of Mathematics and Natural Science Education, IKIP PGRI Jember )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

The purpose of the study is developing articulate studio 13 based learning expert validation through the media and examine the effect on the student learning outcomes. The participants include 48 students of biology education IKIP PGRI Jember with One Shot-Case Study design. The data is analyzed descriptively qualitative. The result of the validation is categorized, the feasible learning activity is good, the students response is well classified and learning outcomes is complete. The conclusion of this study is learning media based articulate studio 13 can improve student motivation and learning outcomes.

TRAINING DISCIPLINE AND RESPONSIBILITY: THE IMPLEMENTATION OF VALUES CLARIFICATION MODEL

Karim, Indah Mutiatul ( Pendidikan IPA Fakultas Ilmu Pendidikan Universitas Trunojoyo Madura ) , Mustadi, Ali ( Education Elementary School Study Program, Universitas Negeri Yogyakarta )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

The purpose of this study was to describe the influence of value clarification model to train discipline and responsibility for the student at PGRI University. This research is quasi-experiment. The population of this research is all students at the PGRI University. The sample of this research by using simple random sampling technique. The data were analyzed using MANOVA Test followed by Bonferroni post hoc test using SPSS 22.0 program. The results showed there is the influence value clarification model to build students’ attitude.

THE DEVELOPING OF PROTOTYPE TOOL DETERMINING CELESTIAL POSITIONS (WAH 1.0) AS LEARNING MEDIA IN EARTH AND SPACE SCIENCE COURSE

Mukti, Wiji Aziiz Hari ( Pendidikan IPA Fakultas Ilmu Pendidikan Universitas Trunojoyo Madura ) , Walid, Ahmad ( Institut Agama Islam Negeri Bengkulu )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

The purpose of this study is a media creation for the deciding tool revealed that the position of the heavenly bodies can be created and used to determine the position of the heavenly bodies so that it can be used as a learning media in the Earth and space science course. The working principle of this tool is to use the coordinates of the horizon. Tools used i.e. compass, bows, tripod, and camera. To test the accuracy of the application use Stellarium mobile version 1.25. The results of this study are to test the accuracy of the altitude angle obtained its accuracy level results 100%. Whereas, in order to test the accuracy of the altitude reached the corner of 99.86%.

INVESTIGATION OF THE MISCONCEPTION IN NEWTON II LAW

Kurniawan, Yudi ( Pendidikan IPA Fakultas Ilmu Pendidikan Universitas Trunojoyo Madura )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

This study aims to provide a comprehensive description of the level of the number of students who have misconceptions about Newtons II Law. This research is located at one State Junior High School in Kab. Pandeglang. The purposive sampling was considering used in this study because it is important to distinguish students who do not know the concept of students who experience misconception. Data were collected using a three tier-test diagnostic test and analyzed descriptively quantitatively. The results showed that the level of misconception was in the two categories of high and medium levels. It needs an innovative teaching technique for subsequent research to treat Newtons Newton misconception.

THE RELATIONSHIP BETWEEN METACOGNITION SKILLS WITH THE STUDENT’S ACHIEVEMENT: THE IMPLEMENTATION OF READING-CONCEPT MAP-THINK PAIR SHARE (REMAP TPS) MODEL

Antika, Linda Tri ( Islamic University of Madura )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

The objectives of this study were: 1) to explain the correlation of metacognitive skills and students achievement taught using Reading-Concept Map-Think Pair Share, and 2) to explain the contribution of metacognitive skills to students achievement. This study used correlational research design. Subjects of this research were the 10th-grade MIA-2 students at SMAN 2 Malang. This study was done in one semester. The results of the study showed that: 1) there was a significant correlation between metacognitive skills and students achievement, and 2) the contribution of metacognitive skills to students achievement was 79,6% %.

THE DEVELOPING OF SIMPLE PROPS BASED ON GUIDED INQUIRY TO IMPROVE STUDENTS’ CRITICAL THINKING SKILL’S

Wijayanti, Astuti ( Universitas Sarjanawiyata Tamansiswa ) , Nur Setyaningsih, Desi Eka ( Pendidikan IPA FKIP Universitas Sarjanawiyata Tamansiswa )

JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
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Abstract

This research is aimed to 1) develop simple sciences instrument device based on a guided inquiry to improve the skill of the students on critical thinking. 2) to know the appropriateness of physic instrument based on guided inquiry.3) to know increase critical thinking skill by using the appropriateness of this instruments. This research is research and development with 4D models. The average score in an aspect based on the whole result of the assessment by media expert is 99,33%, the material expert is 88,20%, peer reviewer 83,02%, and science teacher upon the simple props is 88,41%, then it can be stated as Good (B). There is an improvement in the student’s result when doing pretest and posttest. The average score of the students when doing pretest is 5,29, and posttest is 7,9. The level of critical thinking skill of the students is on the level medium because the criteria are 0,54.

THE RHIZOSPHERE PGPR GRAMINEAE APPLICATION ON THE GROWTH RED GINGER (Zingiber officinale Var. Rubrum)

Kurniahu, Hesti ( Universitas PGRI Ronggolawe Tuban )

JURNAL PENA SAINS Vol 4, No 2 (2017): JURNAL PENA SAINS
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Abstract

PGPR (Plant Growth Promoting Rhizobacteria) is a group of bacteria that colonize in the area of the rhizosphere. These groups of bacteria favor plant growth because they are able to mobilize and provide nutrients and phytohormones. The ability of the bacterial group can be utilized as a growth regulator in the red ginger nursery (Z. officinale Var Rubrum). This study aims to determine the optimal dosage of PGPR for the growth of red ginger seed (Z. officinale Var Rubrum). In this study, red ginger rhizome (Z. officinale Var Rubrum) was soaked with various concentrations of PGPR ie 0%, 25%, 50%, 75% and 100%. The results of this study indicate that soaking rhizomes using PGPR solution significantly influence the growth of red ginger seeds in the form of high seedlings, the number of shoots grow, the number of leaves and the mass of seedlings. A 25% dose has a better ability to boost the growth of seeds when compared to other doses.Keywords: Zingiber officinale Var. Rubrum, PGR, Phytohormone.

THE PHYSICAL LABORATORY ACTIVITIES WITH PROBLEM SOLVING APPROACH TO INCREASE CRITICAL THINKING SKILL AND UNDERSTANDING STUDENT CONCEPT

Trisnowati, Eli ( Universitas Tidar ) , Firdaus, Firdaus ( Universitas Sains Al Quran )

JURNAL PENA SAINS Vol 4, No 2 (2017): JURNAL PENA SAINS
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Abstract

This study aims to investigate the description of the improvement of students’ critical thinking skills and the concept understanding by implementing the problem-solving approach. This study was in laboratory activities. This study was done in four times meeting. The try out subjects was 31 students of grades X of MAN Yogyakarta III. This research is using the quasi experimental method with the pretest-posttest design. The data were collected by using multiple choices tests with assessment rubric and observation sheets. The data are analyzed by using multivariate analysis. Based on the result, the gain standard value of students’ conceptual understanding and students’ critical thinking skills for grade X who learned through student’s worksheet with a problem-solving approach, called treatment class, are higher than students who learned without student’s worksheet with a problem-solving approach, called control class.  Keywords: concept understanding, critical thinking skills, laboratory activities, problem-solving approach. Kata Kunci: kegiatan laboratorium, keterampilan berpikir kritis, pemahaman konsep, pendekatan problem solving.