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Jurnal Pijar MIPA

JPM
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Published by Universitas Mataram

ISSN : 19071744 EISSN : 24601500 DOI : -

Core Subject : Science, Education,

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education

Arjuna Subject : Umum - Umum

Articles 22 Documents

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Search results for , issue "Vol. 17 No. 2 (2022): March 2022" : 22 Documents clear

Seed waste of mango (Mangifera indica) as raw material glucose syrup alternative substitute for synthetic sweetener Taufik Abdullah; Nurhidayatullah Nurhidayatullah; Bidarita Widiati
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

The search for alternative ingredients as natural sweeteners needs to be done. The sweeteners circulating in the market are synthetic sweeteners with no nutritional value and harm health. This research aims to produce a safe sweetener in the form of glucose syrup, which can be used as an alternative to artificial sweeteners through enzymatic reactions, and to find out the suitable reaction conditions to produce glucose syrup with the highest levels in several combinations of pH and temperature. Mango seed core is a source of carbohydrates that can be used as glucose syrup. The average starch content of 1940.1 grams of wet mango core is 10.09%. The starch was hydrolyzed with alpha-amylase and glucoamylase. It is biocatalysts through liquefaction stages (pH 5 and 6) and saccharification (temperature variables 55oCand 60oC).

Implementation of online learning and its impact on student science competency Muhammad Syazali; Mohammad Liwa Ilhamdi
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Student science learning outcomes in the first year of online learning are good. However, this is in the Basic Science course, whose learning objectives do not cover all science topics and are at the basic science level. Continuous monitoring of student performance during online learning is also a necessity. This study analyzes student science learning outcomes in Science Education courses in the second year of online learning implementation. This research is a type of descriptive research that uses qualitative methods. The sample consists of 147 Elemntary School Teacher Department (PGSD) FKIP students at the University of Mataram who had taken Science Education courses. The learning outcomes data collected are final grades in qualitative – A, B+, B, C+, C, D+, D, or E. This data is collected using a closed questionnaire instrument via google forms. The data were analyzed quantitatively using descriptive statistics. The study results provide information that students can be grouped into three based on their scientific competence. This group is students with excellent, good, and sufficient competence. Most of them (98.6%) have competence in the good and very good category.

Analysis of blended learning effectiveness at senior high school during covid-19 pandemic Ellynd Dwi Kurnia; Dadi Setiadi; Baiq Sri Handayani
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Blended learning is a solution to overcome the limitation of learning space, time, and source learning. This study describes the application of blended learning at Senior High School 2 Taliwang during the Covid-19 pandemic. The research method used is a descriptive research method with a qualitative approach. The subjects in this study were students of class X MIPA at Senior High School 2 Taliwang totaling 62 people consisting of 2 classes. Data collection used questionnaires, interviews, and document studies. The results showed that the application of blended learning during the Covid-19 pandemic is divided between face-to-face and online learning, consisting of three stages, namely planning, learning process, and evaluation. The planning stage of the teacher makes a learning schedule, divides teaching time between teachers, prepares learning devices, materials, learning activities, learning media, and evaluation. At the stage of the learning process, the teacher conducts learning interactions, explains the material, assigns assignments and exercises either directly through face to face or online through Google Forms and electronic applications such as WhatsApp.The evaluation stage is assessed through cognitive assessment (knowledge) through assignments or portfolios and affective assessment by assessing those who actively participate in learning and respond.

Mercury contamination levels in rivers and resident wells in Padesa and Sepukur Villages, Lantung District, Sumbawa Regency, Indonesia Nurlaila Agustikawati; Anak Agung Ngurah Ketut Riyadi
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Traditional mining business activities for processing gold ore in Lantung District are amalgamated using mercury (Hg) from 2015 to 2021 and are still ongoing. On average, there are ten to fifteen logs in each village, the waste being discharged only through ditches or small streams leading to rivers. Mercury that enters the aquatic environment will experience precipitation, dilution, and dispersion, absorbed by organisms living in these waters. Mercury water will be converted into methyl mercury by certain bacteria called biomethylation. In methyl-mercury (MeHg), mercury has toxic properties, firm binding, and high solubility. If consumed by biota, it will experience bioaccumulation in the body, and if consumed by humans for a long time, it can cause various types of diseases up to death. This study aims to determine mercury levels in the rivers and wells of residents in Sepukur Village and Lantung District. The research method is a survey with a sampling technique that is purposive sampling based on the distance from the logs to the residents' wells and rivers. The results showed that mercury levels in the Padesa Village river and springs were 0.002 mg/L. The average mercury level in the Sepukur Village River is 0.0004 mg/L, dug wells are 0.0014 mg/L, and drilled wells are 0.0024 mg/L. It can be concluded that the mercury levels in the springs in the village of Sepukur exceed the standard, and the river is classified in class 3. Mercury levels in the drilled wells of the residents of Sepukur Village exceed the standard, and the dug wells are still within the safe limits of the standard. Meanwhile, the river level in the Village of Sepukur is still relatively safe.

Implementation of guided inquiry learning model to train students' critical thinking skills on reaction rate topic Syafira Humairoh; Bertha Yonata
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

This research describes students’ critical thinking skills by implementing guided inquiry learning models in matter reaction rate, including the syntax implementation of guided inquiry learning models, student activities, critical thinking skills, and cognitive learning outcomes. Students in class XI-IPA 4 SMA Kemala Bhayangkari 1 Surabaya were the study’s subjects. This study uses a pre-experimental design with a One-Group Pretest Posttest Design. The data obtained were analyzed using quantitative analysis methods. It can be concluded that (1) 2 meetings showed an average percentage of 88.84% and 94.64%, which is included in the very good criteria. (2) Relevant students’ activities that appear in the learning process in meetings 1 and 2 respectively 86.67%, 93.33%, and irrelevant activities that appear in the learning process in meetings 1 and 2 respectively 13.33% and 6.67%. (3) The average value of N-gain on the interpretation indicator of 0.80 (high), analysis of 0.81 (high), inference of 0.72 (high), and explanation of 0.86 (high) indicates that students’ critical thinking skills have improved. (4) Students’ cognitive learning outcomes show that 27 of 32 students completed or 84.37%, and five students did not complete or 15.63%.

The influence of david kolb’s learning style on students’ biology learning achievement Dewi Asriani Ridzal
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

This study aims to know the effect of learning style on the biology learning achievement of class XI students of SMA Negeri 1 Sampolawa. This type of research is ex post facto through a quantitative descriptive approach. The sampling technique is saturated sampling. The sample in the study amounted to 80 students. Research data were obtained through questionnaires and documentation. The data analysis technique is descriptive statistical analysis and inferential statistics through a simple linear regression test. The results showed that descriptively the learning style tendencies owned by class XI students of SMA Negeri 1 Sampolawa were 23 students with Diverging learning styles with a percentage of 28.8%, Assimilating as many as 20 students with a percentage of 25.0%, Converging as many as 19 students with the percentage are 23.8%. The Accommodating is 18 students with a percentage of 22.5%. Based on the results of the inferential analysis, a significance value of 0.003 was obtained, which was smaller than the value of equal to 0.05, meaning that David Kolb’s learning style had a positive and significant effect on students' learning achievement in biology.

Implementation of the guided inquiry learning model to train critical thinking skills in senior high school Muti'atus Sholehatu Nurdiyah; Bertha Yonata
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

This research aimed to determine students' critical thinking skills by applying the guided inquiry learning model to the reaction rate material. This type of research is a pre-experimental design, with a One-Group Pretest-Posttest Design. This research was conducted on 36 students in class XI MIPA 6 SMA Negeri 1 Menganti Gresik who had not received material about reaction rates. The outcome of this study indicate that: (1) The application of the guided inquiry learning model at the first meeting got a percentage of 95%, at the second meeting 96% with a very good category; (2) Percentage of relevant activities is higher than irrelevant activities; (3) Students' critical thinking skills were successfully trained with an increase in the test as seen through the average N-gain value on the interpretation indicator of 0.86 (high), the inference indicator of 0.83 (high), the analysis indicator of 0.77 (high), and an explanation indicator of 0.80 (high); (4) Cognitive learning outcomes obtained by students showed an increase between pretest and posttest, with an average n-gain value of 0.84 in the high category and from the results of the paired sample t-test, Sig. (2-tailed) 0.000 < 0.005, so there is a significant difference; (5) Student responses to the applied learning model, namely guided inquiry, were very good with a percentage of 95%. This result indicates that the guided inquiry learning model can train the critical thinking skills of class XI students on the reaction rate material.

Guided inquiry learning model application to train students' critical thinking skills on chemical equilibrium material Firda Faradila Sholikhah; Dian Novita
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

The purpose of this study is to analyze the effect of the application of the guided inquiry learning model on activities of students, the products of student learning, students' skills in critical thinking, and student reactions to chemical equilibrium material. The design of this study applies a one-group pretest-posttest design. Thirty students of the eleventh grade at Kemala Bhayangkari 1 Surabaya Senior High School were used as the subject of this study. The percentage of application of each phase of the guided inquiry learning model are meetings 1, 2, and 3 was 96.9%, 98.6, and 100%, respectively. Student activities support the application model with a percentage of the total relevant activities of 92.69%. Student learning outcomes on factors that affect the shift in the direction of chemical equilibrium with n-gain obtained a score of 80%, which is high in the category. The results of students' skills in critical thinking in every phase with a high n-gain score are 53.33% interpretation, 40% inference, 63.33% analysis, 60% explanation, and 80 % evaluation. The student responses have a very good category with 99.15%.

The effectiveness of the guided inquiries learning model on the critical thinking ability of students Mariya Solikah; Dian Novita
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

This study aims to analyze the effectiveness of the guided inquiry learning model on the student's critical thinking skills on the sub-material factors that affect the rate of reaction. The research uses a quantitative method of pre-experimental type with the one-group pretest-posttest design. The instrument used implementation observation sheets, student learning activities, skills pretest-posttest questions, cognitive pretest-posttest questions, and response questionnaires. The research showed some findings. Firstly, the guided inquiry learning model implementation at the first meeting got a percentage of 97.4%, the second meeting it was 93.4%, with a very good category. Secondly, student activities during the learning process that get a larger percentage are more relevant than those that are not relevant—thirdly, improving critical thinking skills based on the significance of 0.000 below 0.05 so that it is accepted. Fourth, the cognitive domain learning outcomes of 11th grade MIPA 4 students at SMAN 19 SURABAYA score 75, which is declared complete with an average n-gain value of 0.85 and classical completeness of 100%. Finally, student responses to the applied learning model were very good, with a percentage of 99.6%.

Guided inquiry learning model implementation to improve senior high school students’ critical thinking skills on equilibrium material Artika Giovani; Dian Novita
Jurnal Pijar Mipa Vol. 17 No. 2 (2022): March 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

The study aims to improve student students' activities, critical thinking abilities, and responses toward implementing the guided inquiry learning model. The one-group pretest-posttest design was employed in the research. The research sample was 36 students from Al-Islam High School Krian Sidoarjo, West Java, Indonesia. The instruments in this research were the syllabus, lesson plans, and student worksheets. The research instruments used were the observation sheet on the implementation of the learning model, the student activity observation sheet, the pretest and posttest sheets, and the student response sheet. The research findings were: (1) The implementation of the learning model received a score of 91.11%, 94.99%, and 99.29% at meeting 1, meeting 2, meeting 3, respectively, with very good criteria. (2) The activity of students in the first meeting was 96.23%, the second meeting was 97.40%, the third meeting was 99.11%. (3) The normality test results showed a significance value of 0.083 > 0.05, which shows that the data was normally distributed. The analysis results using the Paired Sample T-test got a significance value of 0.000 <0.05, Sig. (2-tailed) < 0.05. It indicates a significant difference between the results of the pretest and posttest. (4) The results of student responses obtained positive reactions with an average percentage of answers of 99.44%. The negative reactions with the average percentage of answers are 0.62%.

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Contact Name
Saprizal Hadisaputra

Contact Email
rizal@unram.ac.id

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+6287738066422

Journal Mail Official
pijarmipa@unram.ac.id

Editorial Address
Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location
Kota mataram,

Nusa tenggara barat

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Saprizal Hadisaputra

Contact Email rizal@unram.ac.id

Phone +6287738066422

Journal Mail Official pijarmipa@unram.ac.id

Editorial Address Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location Kota mataram, Nusa tenggara barat INDONESIA

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Saprizal Hadisaputra

Contact Email
rizal@unram.ac.id

Phone
+6287738066422

Journal Mail Official
pijarmipa@unram.ac.id

Editorial Address
Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location
Kota mataram,

Nusa tenggara barat

INDONESIA