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Jurnal Pendidikan Matematika dan IPA

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Published by Universitas Tanjungpura

ISSN : 20860234 EISSN : 25797530 DOI : 10.26418

Core Subject : Science, Education, Agriculture,

Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics

JPMIPA is a journal publishing the mathematic, biology, chemistry, and physic also natural science mathematic eduacation, biology education, physic education, chemistry education, natural science education.

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Articles 12 Documents

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Search results for , issue "Vol 12, No 2 (2021): July 2021" : 12 Documents clear

DEVELOPING ENCYCLOPEDIA OF MACROZOOBENTHIC INVERTEBRATES LEARNING MODULE TO IMPROVE STUDENTS’ LEARNING OUTCOME IN BIOLOGY SUBJECT Rostikawati, R. Teti; Susanto, Lufty Hari; Rahayu, Eka Puspita
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

This research is Research and Development (R&D) model used in the ADDIE model which was done on March until July 2019. The purpose of the study was to develop encyclopedia of macrozoobenthic invertebrates to improve student’s learning outcome. The research was conducted at a High School in Bogor, for the tenth grade students of MIPA 1 as the experimental class with the total number of 37 students and used one group pretest-posttest design. The instruments used in this study consist of expert validation sheets, multiple choice questions and questionnaire sheets to collect student responses about encyclopedia of learning module. Validation data shows that the feasibility test on the content of the material, language and presentations obtain values above 81% included the validity and appropriateness category for learning. The result of the questionnaire shows that a positive response was obtained with values above 82%. The average result obtained at pretest was 43,23 while the average result obtained at posttest was 79,90. The result of the N-Gain analysis shows a medium criterion of 0,6. In conclusion, the encyclopedia of macrozoobenthic invertebrates can improve student learning outcome.

THE INFLUENCE OF TREFFINGER LEARNING MODELS ON MATHEMATICS COMMUNICATION SKILLS OF STUDENTS Salingkat, Suhartini; Bilalu, Anastasia
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

This study aims to analyze the impact of the Treffinger learning model on students' mathematical communication skills. This research was conducted at Senior High School 1 Bulagi grade 10th, 2018/2019 academic year. This type of research was a Quasi-Experimental study with a Pretest-Posttest Control Group Design. Data collection on mathematical communication skills used test instruments. The results revealed that the mathematical communication skills of students taught using the Treffinger learning model were higher than those taught using the Student Team Achievement Division / STAD cooperative learning model (FCount = 5.78> Ftable = 4.03). It can be seen from the results of the research that application of the Treffinger learning model has a higher effect on students' communication skills compared to the Student Learning Achievement Division (STAD) cooperative learning model. It is proven from the average mathematical communication skills of students taught with the Treffinger learning model on the written text indicator, drawing and mathematical expression expressed at 50.67 while the students taught with the Student Team Achievement Division (STAD) cooperative learning model on the written indicator text, drawing and mathematical expressions were stated at 47.50.

METACOGNITIVE SKILLS ANALYSIS OF STUDENTS IN INTEGRAL CALCULUS PROBLEM SOLVING Rahmawati, Nurina Kurniasari; Waluya, S B; Rochmad, Rochmad; Hidayah, Isti
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

This study aims to describe the profile of students' metacognitive skills in solving integral calculus problems seen from the aspects of planning, monitoring and evaluation metacognitive skills. The research method used is descriptive qualitative research methods. The subjects in this study were 3rd semester students who had taken courses or were taking calculus II courses for the 2020/2021 academic year which were carried out using purposive sampling technique. In this study, the instrument used was a test to measure the ability in solving integral calculus problems in the form of essay questions, unstructured interview guidelines, documentation and observation. Data were analyzed in three stages, namely reduction, presentation, and conclusion or verification. The results in this study were students with high problem solving abilities had met the indicators of metacognitive skills, namely the planning, monitoring and evaluation stages. Students with moderate problem-solving abilities have only reached indicators of metacognitive skills, namely the planning and monitoring stages, but have not reached the evaluation stage, while students with low problem-solving abilities have not measured metacognitive skills indicators both at the planning, monitoring and evaluation stages. So that students with high problem solving abilities are more likely to have good metacognitive skills, because students with high problem solving abilities are well organized from planning, monitoring to the evaluation stage.

MORPHOLOGICAL AND CHROMOSOMAL CHARACTERIZATION OF ORCHID Peristylus goodyeroides Lindl. FROM CURUG SETAWING, KULONPROGO Kurniawan, Febri Yuda; Riyadi, Anindita Della Rosa
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

Peristylus goodyeroides is a terestrial orchid that scattered around Southeast Asia. Morphological characters of P. goodyeroides can vary, depending on the ecological factors and habitat. Cytological characters in the form of chromosome configurations can be used as a taxonomic tool for the process of identifying and understanding variations in taxa. The purpose of this study was to determine the morphological characters and chromosome configuration of the P. goodyeroides from Curug Setawing, Kulonprogo. The method used was morphological characterization and plant chromosome preparation by squash method with the main steps of fixation, maceration, staining and observation. Data were analyzed with the help of Image raster 3, Corel Draw X7, and Microsoft Excel 2013. P. goodyeroides from Curug Setawing has the morphological characters of root tubers, cylindrical stems, ovate leaf shape, convolutive leaf arrangement and creamy white flowers. The orchid has a number of chromosomes 2n = 10 with a karyotype formula of 2n = 2x = 8m + 2t. Metacentric chromosomes are found on chromosomes 1-8 and telocentric chromosomes 9-10. The absolute arm length of the chromosomes has a range of 2.03-3.44 μm, the relative arm length of the chromosomes is 2.21-3.32 μm, the length of the p arm is 1.13-1.58 μm and the q arm is 1.23-2.12 μm.

ANTIBACTERIAL POTENTIAL ETHANOL EXTRACT OF KAYU RACUN LEAF (Rhinacanthus nasutus) AGAINST Staphylococcus aureus AND METHICILLIN RESISTANT Staphylococcus aureus Febria, Fuji Astuti; Rahmadeni, Yossi; Bachtiar, Amri
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

The excessive use of antibiotics in the treatment of infections or diseases caused by Staphylococcus aureus is the main cause of antibiotic resistance. Methicillin-resistant S. aureus (MRSA) strains are a serious problem because of their wide distribution in the clinical environment and the living community, so it is necessary to search for antibacterial sources from natural products and traditional medicines such as Kayu racun leaves (Rhinacanthus nasutus). Information regarding the content of the active ingredient and the antibacterial potential of the ethanol extract of Kayu racun leaves is still limited. This study aims to test the phytochemical and antibacterial activity of the ethanol extract of Kayu racun leaves against S. aureus and MRSA bacteria by invitro. The research used an experimental method and was divided into two stages, namely; Phytochemical test of the ethanol extract of Kayu racun leaves using the Thin Layer Chromatography (TLC) method and the antibacterial activity test of the ethanol extract of Kayu racun leaves against S. aureus and MRSA using the paper disc diffusion method. Based on the research results, it can be concluded that the ethanol extract of Kayu racun leaves contains alkaloids, phenols, and flavonoids. The best antibacterial activity was found at a concentration of 100 mg/ml with an inhibition zone diameter of 26.20 mm against S. aureus and 17.90 mm against MRSA.

THE ABILITY OF STUDENTS’ CONCEPTUAL UNDERSTANDING IN COMPLETING STORY PROBLEMS ON MATHEMATICS Mayasari, Dian; Habeahan, Nova Lina Sari
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

This study aims to describe the ability of students to understand concepts in solving story problems. The research subjects were 28 grade VII students of SMP Negeri 8 Merauke. Data collection techniques were carried out in tests of students' abilities in understanding concepts and unstructured interviews. The test used to measure the concepts is in the form of description questions and 4 questions with integer operation material on the story problem. From the data analysis, it was concluded that the students' ability at high ability could master the 6 indicators of concept understanding, students in the moderate category mastered 5 indicators of concept understanding, students in the low category mastered 4 indicators of conceptual understanding. It can be concluded that the students' concept understanding ability is in the medium category.

TABLE OF CONTENTS VOLUME 12 NUMBER 2 JULY 2021 JPMIPA, Editor
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

NEED ANALYSIS OF STUDENT WORKSHEET (LKS) OF IONIC EQUILIBRIUM AND pH OF THE SALT SOLUTION BASED ON PROBLEM SOLVING Faizah, Faizah; Widyastuti, Suciati Rahayu
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

Problem solving skills are one of the skills needed by students in the era of the industrial revolution 4.0, so it becomes a challenge for a teacher to design creative learning. One of the media that supports students' problem solving skills is to use worksheets. Meanwhile, the worksheets used so far are general in nature. Suitable worksheets are developed that support students in solving problems, namely problem solving-based worksheets. This study aims to analyze the need for problem solving-based student worksheets. This type of research is a qualitative descriptive study. This needs analysis is part of the research and development of the 4D model, specifically the Define stage. The subjects in this study were students of class XII in SMA Negeri 3 Cirebon City and chemistry teachers as informants. The results showed that students needed worksheets that were more attractive and easy to understand. The worksheets available are in accordance with KD, KI and the 2013 curriculum, but not yet according to student needs. Based on data obtained from several analyzes including analysis of student perceptions, teacher perceptions, student characteristics, curriculum, assignments, concepts and analysis of learning objectives. So it is necessary to develop problem solving worksheets, especially in the matter of ionic equilibrium and pH of salt solutions which can train students to solve problems and relate theory to facts in everyday life.

THE IMPLEMENTATION OF PROBLEM POSING WITH FERRIS WHEEL HYDROLYSIS TO IMPROVE SCIENCE PROCESS SKILLS Ahsani, Mar’atuzzakiya; Utami, Annisa; Febriyanti, Resi; Enawaty, Eny
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

This study aims to determine the students’ science process skills towards Salt Hydrolysis material in class XI IPA of SMA Katolik Talino Ambawang before and after being given the problem-posing learning model by using Ferris wheel hydrolysis and how much it improves the skills. It is a pre-experimental study with a one-group pretest-posttest design. The sampling technique used is saturated sampling, of which the subjects are 12 students of XI IPA. The normality test used on the pretest and posttest results is the Shapiro-Wilk test, which results in a normal distribution, Asymp.Sig. (2-tailed) greater than 0,05 with a significance pretest of 0,197 and postest of 0,547. The t-test results of the pairing sample indicate that the Asymp. Sig. (2-tailed) value is less than 0.05, which is 0,000 < 0.05. It was concluded that there is a difference between the students’ science process before and after the treatment. The mean scores of the students’ skills before and after the treatment are respectively 45,69% and 82,36%, with a high category. The value of 0,68 from the N-Gain calculation showed that the problem-posing learning model using Ferris wheel hydrolysis on Salt Hydrolysis material improved the students’ skills with the medium category.

COVER VOLUME 12 NUMBER 2 JULY 2021 JPMIPA, Editor
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

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