Jurnal Pendidikan Matematika dan IPA
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EFFECT OF LEARNING MODEL APPLICATION OF GUIDED LABORATORY INQUIRY TO LOGICAL THINKING ABILITY OF STUDENTS ON HEAT TO ELECTRICITY CONVERSION MATERIAL
Full text linkThis reseach aims to determine the application effect of guided inquiry laboratory model on students’ logical thinking ability on the material of heat to electricity conversion. The population in this reseach were all students of class XII MIA at SMA Negeri 15 Bandarlampung for the 2019/2020 academic year. The technique used is purposive sampling, so that the sample in class XII MIA 1 is obtained in the form of a one group pretest-posttest design. The process of collecting data using interview techniques as a preliminary study and through pretest-posttest. The test question used is the Logical Thinking Test which measures five indicator’s of logical thinking. Hypothesis testing is done by using Paired Sample T-Test. The results of the analysis showed that the average difference between the posttest and pretest scores was 30.80 for all indicators. Data analysis also obtained an average n-gain of 0.55 which is included in the medium category. The n-gain test was also carried out on each indicator and was in the medium category. The variable controlling indicator shows n-gain of 0.65; probabilistic reasoning of 0.66; correlational reasoning of 0.62; proportional reasoning of 0.51; and combinatorial 0,36. Based on the entire analysis test, the results of the reseach showed that there was a significant effect of applying the guided inquiry laboratory model on the students’ logical thinking ability on the material of heat to electricity conversion
SELF REGULATED LEARNING OF VOCATIONAL STUDENTS IN MATHEMATICS LEARNING DURING COVID-19 PANDEMIC
Full text linkThe Covid-19 pandemic that is currently sweeping the world, including Indonesia, made the government make the decision to implement PSBB (large-scale social restrictions) by asking people to stay at home, including the learning process at school. The learning process carried out online or online indirectly makes students adapt to the new learning process. Students are required to be able to do self-regulation in learning (self regulated learning). Self regulated learning is important for students, especially when learning is carried out online. This study aims to obtain a picture of self-regulated learning of class XI SMK students during the Covid-19 pandemic. This research is a quantitative-descriptive study using a survey method. The instrument used was a self-regulated learning questionnaire which had 23 statement items. Data collection was carried out using an online questionnaire on google form which was given to students of class XI Fashion Design Vocational Schools. The results of the SRL research for students of class XI Fashion Design at SMK Negeri 3 Pekanbaru during the pandemic were 17% students with high SRL, 53% students with moderate SRL and 30% students with low SRL. tudent's SRL is low on indicators of evaluating learning processes and outcomes as well as self-efficacy (self-concept), this is influenced by individual, behavioral and environmental factors
ANALYSIS OF ERROR IN DETERMINING THE DISTANCE BETWEEN TWO POINTS IN THE CARTESIAN PLANE IN THE FIRST SEMESTER STUDENTS
Full text linkThe purpose of this study is to describe the error in determining the distance between two points. This type of research is descriptive qualitative research. The subjects of this study were 6 first-semester students of the mathematics education study program at one of the universities in Malang City who experienced errors in determining the distance between two points. The research instrument consisted of the problem of the distance between two points and the interview guide. The data collected in this study were in the form of student worksheets and interviews. Student work data were analyzed based on the types of errors that aim to determine the characteristics of student errors. The results of the interviews were analyzed by coding words or sentences to find out the causes of student errors. The results showed that there were three errors in determining the distance between two points, namely: misconception caused by misunderstanding and intuitive thinking; miscalculation caused by lack of thoroughness, and fact errors caused by lack of thoroughness and lack of attention to the overall information contained in the problem
IMPLEMENTATION OF VIBRATION AND WAVES MODULE BASED ON STEM EDUCATION TO IMPROVE HIGHER-ORDER THINKING ABILITY VIEWED FROM STUDENT'S SELF CONFIDENCE
Full text linkThis study aims to determine (1) the effect of implementing STEM-based modules on students' higher order thinking skills; and (2) the effect of self confidence on students' higher order thinking skills. This study used an experimental method with a one way ANOVA research design. The research sample was 18 students in one class and attended vibration and wave courses. The instrument used to measure students' high-order thinking skills in the form of HOTS test questions in the form of essays totaling 10 questions that have high valid and reliable criteria and a closed questionnaire with a Likert scale to measure student self-confidence. The research data were analyzed statistically which included the N-Gain test, analysis prerequisite test and hypothesis testing. The results showed that significantly, learning using STEM-based modules had an effect on students' higher order thinking skills. The increase in students' higher order thinking skills is higher for the level of creating when compared to the level of analyzing and evaluating. Meanwhile, there is no significant effect of self-confidence on students' higher order thinking abilities
ANALYSIS OF ERROR SOLUTION OF MATHEMATICS STORIES BASED ON WATSON CRITERIA
Full text linkThis research is motivated by the number of errors made by students in solving math problems. The purpose of this study was to determine the types of errors made by students in working on math problems based on Watson's criteria in class IX.8 and to determine the factors that caused students to make mistakes in doing math problems based on Watson's criteria in class IX.8. The research method used is descriptive method with a qualitative approach. The sampling technique used is purposive sampling technique. The sample in this study consisted of 32 students, for further research from the existing sample, namely 5 students according to the level of academic ability and certain considerations. The results of this study indicate that the types of errors made by students with high academic abilities are incorrect procedures and missing conclusions. The types of errors of moderate ability students are missing data, wrong procedures and missing conclusions. The types of errors made by students with low academic ability are inaccurate data, wrong procedures, missing data and missing conclusions. The cause of students making mistakes is that students do not understand the questions, students are confused in answering questions and forget to use the correct formula. So it can be said that the error in reading mathematical stories is in accordance with Watson's Criteria
ANALYSIS OF USE OF PHYPHOX APPLICATIONS FOR PHYSICS PRACTICUMS USING SMARTPHONES ON COLLISION MATERIAL
Full text linkSmartphones are a physical learning medium that can support students to experiment with measurement devices. One of the smartphone apps that can be used is phyphox. The study aims to find out collision analysis lends several types of fall fields that include soil, ceramic floor areas and board fields so that it will generate data on the height, time, and energy generated when objects hit the surface. The method used is an experiment with a collision testing comparison approach with different drop fields using phyphox and stopwatch applications. The results of three experiments in the energy board field that apples produce are larger than ceramic and soil floor fields. While the results of experiments using stopwatches showed that the energy produced has a slightly greater value than using phyphox. Phyphox application can be used for practicum independently
EFFECTS OF NATURAL EXTRACT OF CELERY LEAVES ON THE KIDNEYS OF WHITE RATS (Rattus novergicus) AFTER ASPIRIN INDUCTION
Full text linkHerbal 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.
ANALYSIS OF THE NEED FOR DEVELOPMENT OF ISLAMIC E-MODULE IN MATRIX MATERIAL IN CLASS XI MA
Full text linkThe problems that often become student complaints are the difficulty of understanding the abstract problems provided in school-facilitated textbooks, in learning mathematics not all teachers connect the material being taught with contextual problems that exist around students, and also based on the results of interviews between researchers and teachers in the field of study. information was obtained that the teacher had never combined Islamic nuances with the material being taught. Therefore, we need a solution by making a teaching material in the form of an Islamic e-module. The purpose of this study was to analyze the need for an e-module with Islamic nuances by integrating Islamic values in it for class XI MA students. The research method used is descriptive qualitative method. The subjects of this study were mathematics teachers at MAN 3 Pekanbaru and class XI students at MAN 3 Pekanbaru. Analysis of research data using the Miles-Huberman Interactive Analysis which includes data reduction, data presentation, and making conclusions. The results obtained in this study are that it is necessary to develop teaching materials in the form of e-modules with Islamic nuances for class XI MA matrix materials. This research can be used as a needs analysis in research on the development of Islamic E-Modules in the XI MA class matrix material. The population used for this study is still on a small scale, therefore in future research it is hoped that it can increase the number of population used, so that it will approach the picture of the actual condition
ANALYSIS OF NEEDS FOR THE DEVELOPMENT OF ETHNOMATHEMATIC E-MODULES BASED ON RIAU MALAY CULTURE TO FACILITATE MATHEMATIC LITERATURE ABILITY OF SMA/MA STUDENTS
Full text linkThis research aims to determine the needs of teachers and students before the formulation of Riau Malay based ethnomatematics e-module to facilitate student’s mathematical literacy skills. This research used qualitative descriptive methods that are oriented towards the development of a product. The subject of this research were two mathematics teacher and students of class XI of SMA Nurul Falah Pekanbaru. Data were collected by using interview method and questionnaire distribution. The data obtained were analayzed into three aspects which are analysis of curriculum, analysis of students, and analysis of materials. The result shows that the curriculum that is being used is curriculum 2013. Teaching materials that are being used are textbooks from Erlangga publisher. Result of student’s analysis shows that 85,7% of students need the exercise about literacy and numeracy in matehmatics subject. 71,4% of students agree that literacy questions in mathematics subjects that contain elements of Riau Malay culture will increase their interest in understanding the problem. The result of this research shows that it is necessary to develop an ethnomathematics e-module based on Riau Malay culture to facilitate student’s mathematical literacy skills
TROPHIC STATUS OF PHYTOPLANKTON AS BIOINDICATOR OF EUTROPHICATION LEVEL OF FLOOD RETENTION PONDS IN SAMARINDA CITY
Full text linkThe 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