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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 343 Documents

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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.

ANALYSIS OF MATHEMATICAL REPRESENTATION ABILITY ON ASSEMBLAGE MATERIAL FOR JUNIOR HIGH SCHOOL STUDENTS Anggaraini, Dila; Kartini, Kartini
Jurnal Pendidikan Matematika dan IPA Vol 13, No 1 (2022): January 2022
Publisher : Universitas Tanjungpura

This study aims to provide description of mathematical representation ability of Pekanbaru Junior High School students based on the answers to assemblage questions. The research method Decriptive method in the form of a survey was used in this research. The research subject are 25 students of class VII. The object of research is the ability of students' mathematical representation on the assemblage material. The data analysis technique uses deductive methods by collecting data, processing data, presenting data and also analyzing data with the help of experts and theories from a literature review. Data was collected by measuring written tests about mathematical representation abilities. Consists of 6 assemblage of essay questions with moderate criteria. Through the validity test, valid results were obtained with moderate and high criteria and had moderately correlated reliability with good criteria. The results of the data test and analysis concluded that students' mathematical representation abilities applied to assemblage material had 91% visual representation skills using diagrams, 76% representation skills using mathematical expressions, and 51% mathematical representation skills using words.

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.

TYPE OF ERROR IN COMPLETING MATHEMATICAL PROBLEM BASED ON NEWMAN"™S ERROR ANALYSIS (NEA) AND POLYA THEORY Winarso, Widodo; Wahid, Sirojudin; Rizkiah, Rizkiah
Jurnal Pendidikan Matematika dan IPA Vol 13, No 1 (2022): January 2022
Publisher : Universitas Tanjungpura

This study disscusses student"™s errors in completing mathematical problems based on Newman"™s Errror Analysis and Polya Theory. The study uses a qualitative descriptive approach. The subject of this study are 78 students of Madrasah Aliyah Negeri (MAN) 2 Cirebon. The study uses tests and interviews as data collection techniques. Students take a test to determine their mathematical ability, and the test uses sequence and series as subjects. There are 3 phases in collecting data: data reduction, data presentation, and conclusion. Outline of Error analysis is created using five types of student mathematical error of Newman's Error Analysis and four types of student mathematical error of Polya Theory. The study results based on Newman's Error Analysis are errors reading by 1%, error understanding by 0%, error transforms by 3%, error processing ability by 5%, and error encoding by 7%. As the result of the study based Polya theory, errors when understanding the problem by 31%, errors when devising a plan by 11%, errors when carrying out the plan by 9%, and errors when Looking back by 33%. The result of the interview shows that the error occurs when students don"™t do calculations carefully, don"™t learn the formula, and cannot distinguish between sequence and series. Students also have a lack of understanding when completing the problem about compound interest.

EFFECTS OF NATURAL EXTRACT OF CELERY LEAVES ON THE KIDNEYS OF WHITE RATS (Rattus novergicus) AFTER ASPIRIN INDUCTION Indriana, Edni; Titrawani, Titrawani
Jurnal Pendidikan Matematika dan IPA Vol 13, No 2 (2022): July 2022
Publisher : Universitas Tanjungpura

Herbal plants can be used as a treatment option, including the treatment of kidney disease. The administration of herbal remedies such as celery is a more natural and safe treatment healing alternative. The study aims to determine the effect of celery extract in repairing the damage to the kidney cells of aspirin-induced white mice. This study used a completely randomized design (CRD) consisting of 5 groups with 3 replications: K- (aspirin 12.6 mg/kg BW), K+ (feed normal), P1 (celery extract 200 mg/kg BW + aspirin 12.6 mg/kg BW), P2 (celery extract 100mg/kg BW + aspirin 12.6 mg/kg BW) and P3 (celery extract 50 mg/kg BW) + aspirin 12.6 mg/kg BW). From the results of observations on kidney histology of rats after giving aspirin, it is known that there is damage to the nucleus of cells undergoing pyknosis and swelling of the glomerulus, which is characterized by narrowing of the Bowman's space. This suggests that the celery extract at a stratified dose may affect the histopathological kidney of aspirin-induced mice.

Biotechnology Module Based on Sociosaintific Issues to Improve Student's Critical Thinking Ability Through Online Learning Alfitriyani, Nia; Pursitasari, Indarini Dwi; Kurniasih, Surti
Jurnal Pendidikan Matematika dan IPA Vol 12, No 1 (2021): January 2021
Publisher : Universitas Tanjungpura

This research aims to develop a science learning module based on Socio Scientific Issues on biotechnology materials that can improve students' critical thinking skills. This research is an R&D research with a 4-D design. Validation is carried out by science experts and teachers. The module readability test and the students' responses to the module were obtained using a close test and questionnaire. Data analysis was performed descriptively quantitatively. The results of the module validation by expert lecturers obtained 89% and an average CVI value of 0.98 with a very valid category and was suitable for use. The module readability test results were 42.22% with the instructional level category indicating that the modules needed to be learned. The results of the N-Gain test for critical thinking ability is 0.59, the module is in the moderate category and the students' response value to the module by 87.50% showed the response in the very good category to the use of module-based SSI in learning to improve critical thinking skill.

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

RECONSTRUCTION OF ONLINE LEARNING IMPLEMENTATION PLAN BASED ON FLIPPED LEARNING MODEL MATERIAL HUMAN RESPIRATORY SYSTEM IN CLASS XI Meishanti, Ospa Pea Yuanita; Putra, Ino Angga; Kumala, Dina Ratna
Jurnal Pendidikan Matematika dan IPA Vol 13, No 2 (2022): July 2022
Publisher : Universitas Tanjungpura

The Covid-19 pandemic makes learning a limited, namely through online and face-to-face learning, then circulars from the government regarding simplification of lesson plans into 1 sheet with 3 main components, making it a challenge for a teacher to reconstruct the lesson plans, by adapting the current situation. The purpose of this research is to developing RPP Reconstruction Based on the Reverse Learning Model of the Human Respiratory System The material determines the feasibility of the learning design based on the learning validation questionnaire design experts, learning activities and attractiveness of lesson plans based on student responses. This research uses ADDIE a development model that has five stages, namely: 1) Analyze 2) Design 3) Develop 4) Implement, and 5) Evaluation. The subjects of this study were 2 learning design validation experts and 10 students class XI IPA. The instrument used is a learning design validation questionnaire experts and student response questionnaires. Data analysis techniques are quantitative and qualitative. The results of the validation of learning design experts that the Inspirational lesson plan for this flipped learning model obtained an average value of 91.67% feasible, and the learning implementation of 95.53% was included in the very good category. Based on these results, this RPP reconstruction can be applied to the respiratory tract system material for class XI humans and is expected to be able to The inspirational RPP reconstruction can be applied to other materials.

ALGEBRA PROBLEM SOLVING ABILITY BASED ON SOLO TAXONOMY ASSESSED FROM COGNITIVE STYLE Kusuma, Arie Purwa; Waluya, S B; Rochmad, Rochmad; Mariani, S
Jurnal Pendidikan Matematika dan IPA Vol 12, No 2 (2021): July 2021
Publisher : Universitas Tanjungpura

Algebra is a branch of mathematics that uses mathematical statements to describe the relationship between various things. This study aims to describe the algebra problem solving abilities of students in the Linear Program course. There are differences in student problem solving, which are caused by students' cognitive styles. Reflective and impulsive cognitive styles based on the SOLO taxonomy. This research method is descriptive qualitative. The research was conducted at STKIP Kusuma Negara Jakarta. The research subjects consisted of 4 students, 2 students having a reflective cognitive style and 2 students having an impulsive style. Purposive sampling technique was used in taking the subjects.Data collection techniques used cognitive style test questions Matching Familiar Figures Test (MFFT), algebra problem solving test questions and interview guidelines. Data collection techniques used two techniques, namely written tests and interviews. Technical analysis of data by reducing data, presenting data, and drawing conclusions. From the data processing, the results of the research were 2 students whose have flexible cognitive style also have good algebra problem solving abilities and based on SOLO taxonomy reached the Extended abstract level. Meanwhile, students who have an impulsive cognitive style in solving algebra problems based more on the SOLO taxonomy have Multistructural and Unistructural levels. So each cognitive style of students gives the different results in solving problems.

TROPHIC STATUS OF PHYTOPLANKTON AS BIOINDICATOR OF EUTROPHICATION LEVEL OF FLOOD RETENTION PONDS IN SAMARINDA CITY Rahayu, Ndaruning Tri; Sudrajat, Sudrajat; Hendra, Medi
Jurnal Pendidikan Matematika dan IPA Vol 13, No 1 (2022): January 2022
Publisher : Universitas Tanjungpura

The flood retention pond in the city of Samarinda, is a body of stagnant water (lentik), the flow of water is not so large that it affects the life of the organisms in it. The research was carried out in December 2020 - March 2021 at three stations using the method Purposive sampling. The composition of phytoplankton species consisted of Chlorophyceae, Dictyochophyceae, Cyanophyceae, Bacillariophyceae (Diatom), Euglenophyceae, Dinophyceae, Trebouxiophyceae. There are three classes of phytoplankton with relatively high abundance, namely Chlorophyceae, Cyanophyceae and Bacillariophyceae (Diatoms). At the moment of condition rain the highest species abundance at station 1 was Eutonia sp. from the Bacillariophyceae (Diatom) class, at station 2 the species of Merismopedia punctata from the Cyanophyceae class and at station 3 Merismopedia punctata from class Cyanophyceae. When conditions are not raining, the highest species abundance at station 1 is Eutonia sp. from the Bacillariophyceae (Diatom) class, at station 2 the species of Merismopedia punctata is from the Cyanophyceae class and at station 3 is the Merismopedia punctata species from the Cyanophyceae class. TSI analysis when it rains and does not rain have an average index value ranged from 10,46 "“ 17,79, the eutrophication status is in the Oligotrophic category. The water quality factor that forces the eutrophication status in this pond is related to the relatively high nitrogen (N) and phosphorus (P) nutrients.

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