Kalamatika (E-Journal)
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PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS PREZI PADA MATAKULIAH ANALISIS VEKTOR
No full textUndergraduate students have difficulties in understanding abstract concept of Vector Analysis and need visualization to support learning. Prezi-based instructional media developed by consider visual principle that support Vector Analysis learning. This study aims to describe Prezi-based instructional media development and produce Prezi-based instructional media that is suitable for learning. Development refers to ASSURE development model (Analyze learners, State objectives, Select methods, media and materials, Utilize media and materials, Require learners’ participation, and Evaluate and revise). The research instrument consisted of expert assessment sheets, test questions and student response questionnaires. Instructional media is feasible to be used satisfy aspects of validity and effectiveness. Assessment of the validity aspect based on the experts’ judgment that is on a valid criterion. While the assessment of effectiveness aspects based on test results are on quite good criteria and questionnaire responses of undergraduate students are on excellent criteria. Learning media consists of menu sections and content sections. The menu section consists of an overview of the material that will be presented in the media. The content section consists of material that can be zoomed in and zoomed out according to needs and learning videos to visualize the concept of Vector Analysis
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH DAN REPRESENTASI MULTIPEL MATEMATIS DENGAN MENGGUNAKAN MODEL PEMBELAJARAN KUANTUM
No full textMathematical problem solving and multiple representation ability is essential to develop. So it needs a study to facilitate the students to be active, interesting and challenging for students to think and therefore contributes to the students ability to represent, understand the material during learning process and solve mathematical problems. Quantum learning model puts students on comfortable and pleasant condition so that students can play an active role in the learning process and student expected to get the flexibility to bring their own representation and easy to solve the problem. The main objective of this study was to determine the improvement in the mathematical problem solving and multiple representation of students who obtain quantum learning model and students who received conventional learning, as well as to determine the relationship between the mathematical problem solving and multiple representations. This research is a quasi experimental with non equivalent control group design. The population of this study are all students of class VII with two classes of them as samples. The research data obtained through problem-solving ability and multiple mathematical representations test. The results showed that: (a). Quantum learning model can improve the mathematical problem solving and multiple representations ability, (b). there is a relationship between the mathematical problem solving and multiple representations ability
PROFIL PEMAHAMAN KONSEP TEOREMA PYTHAGORAS SISWA BERDASARKAN PERBEDAAN GAYA KOGNITIF FIELD INDEPENDENT DAN FIELD
No full textThis research is a descriptive qualitative approach which aims to describe profile of understanding of pythagoras theorem concept of students based on the difference of field independent and dependent cognitive style. The subjects of this study are 9th grade students of junior secondary school. Subject determination is done using GEFT instrument and mathematics teacher’s consultation, then continued by giving concept comprehension test on Pythagorean theorem material and interview. Checking the validity of data is done by time’s triangulation. The results showed that student: 1) states the meaning of Pythagoras's theorem given in his own language by noting Pythagorean theorem’s definition; 2) when using the concepts of Pythagoras theorem, students use triangle images as representations to facilitate an interpretation of given sides position. Then the students find the unknown values and use Pythagoras theorem to solve the problem; 3) using the necessary condition or sufficient condition of a concept to determine the area of a triangle using Pythagorean theorem by finding a side. While, the results for field independent cognitive style are student: 1) expresses the meaning of Pythagoras theorem by using their own language and mentioning the symbols; 2) using the concepts of Pythagorean theorem to solve the problem given by using multiplication operations to determine one of unknown sides. Then, student use pythagoras theorem to find the answer of the given problem; 3) using the necessary conditions or sufficient terms a concept of Pythagoras theorem by stating that it must be known two sides or not
MENINGKATKAN KONEKSI MATEMATIS SISWA SMP MELALUI PENDEKATAN OPEN-ENDED DENGAN SETTING KOOPERATIF TIPE NHT
No full textThe problem raised in this research is that students' ability in making mathematical connections is still relatively low. This is because some of the theories in the learning of teachers still enjoy this way of learning, meaning that the students are only recipient of information without inspiration to active. Therefore, the authors are interested to conduct research by applying an NHT cooperative model setting to improve mathematical connection ability of junior high school students. This study aims to determine whether the knowledge of mathematical connections of junior high school students using learning methodology is better than junior high school students using ordinary learning. This research was conducted in SMP Krida Utama Padalarang Class VII, with research method the research used is quasi-experimental method. The sample of this research is taken two classes namely class VII A as experiment class and class VII B as control class. The research instrument is a set of mathematical connection test questions consisting of 5 test questions, and then tested by using a statistical test of differential. Based on the results of research and data processing, the authors conclude that the ability of mathematical connections of junior high school students whose learning using open-ended approach with learning model setting NHT type cooperative learning is better than the mathematical connection ability of junior high school students whose learning using ordinary learning
PENGARUH PENDEKATAN VISUAL THINKING TERHADAP KEMAMPUAN KONEKSI MATEMATIS SISWA
No full textThis study aims to see the effect of visual thinking approach on improving students' mathematical connection ability. This is a quasi-experimental research with nonequivalent control group design. The sample is students on class VIII in Madrasah Tsanawiyah which is chosen by using purposive sampling technique. The research instruments used are a test of mathematical connection ability and an observation sheet. The results of the observations showed an increase in the activity of students and teachers in each meeting in the classroom that obtained learning by using visual thinking approach. The data of increased connection ability is not normally distributed, so the data analysis is done using U non-parametric test of Mann Whitney. From the data analysis, it can be concluded that there is no significant effect of learning by using visual thinking approach to students’ mathematical connection ability improvement
PENGARUH KECERDASAN LOGIS-MATEMATIS DAN KECERDASAN MUSIKAL TERHADAP HIGHER ORDER THINKING SKILLS (HOTS)
No full textThe aim of this study is to test the hypothesis about the influence of logical-mathematical intelligence to higher order thinking skills. The method that used in this research is survey method. This research using descriptive analysis and data requirement test (normality test, regression linearity test, and multicollinearity test), followed by hypothesis testing using correlation and multiple regression. The samples of research are taken from an affordable population by removing data outliers. The number of samples after the data outliers were eliminated were 99 students SMPN 6 Bekasi VIII grader. Instruments that used is a multiple choice test sheet to measure logical-mathematical intelligence, straight observation sheet to measure musical intelligence, and test sheet problem essay to measure higher order thinking skills. The results of hypothesis testing were obtained by following conclusions: 1) There is a positive influence that significant in logical-mathematical intelligence and musical intelligence to higher order thinking skills. 2) There is a positive influence that significant in logical-mathematical intelligence to higher order thinking skills. 3) There is no positive influence that significant in musical intelligence to higher order thinking skills
KEMAMPUAN ANALOGI MATEMATIS MAHASISWA PADA MATA KULIAH KALKULUS DIFFERENSIAL
No full textThis research aims to describe the students capability in mathematics analogy at the subject of differential calculus. The technique in taking the sample uses “purposive sampling technique”. It takes three students from each category, they are low, medium, and high. From the low category must of students haven’t understood get the concept used the solve the problem, not only the problem of the source but also the problem of target. For the medium category most of the students have understood the concept, and the similiar concept used, but they dont’t have the cabability to apply in solving the problem. Whereas for the high category most of the students have understood the similiar concept, the concept that is used and have capability to apply it to solve the problem of the source and target
MENINGKATKAN KEMAMPUAN SPASIAL MATEMATIS SISWA DENGAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN GEOGEBRA
No full textStudents’ spatial ability of MA Al-Hanif is very low. This is because the students rarely use mathematics learning media which helps learning process. One of learning media that can help imagination is Geogebra. This study aims to determine the improvement of mathematical spatial abilities of students with problem-based learning model assisted with Geogebra. The research method used is Classroom Action Research which implemented in 3 action cycles. Population in this study is students of class XI MA Al-Hanif in academic year 2016-2017, with sample as many as 17 people with Geometry course. The instrument used a matter of spatial ability test in each cycle, teacher and student observation sheet used in learning and student attitude questionnaire. The results showed that, by applying the learning model of problem-based learning problem assisted geogebra can improve spatial ability of the students. This is shown by the results of spatial ability tests in each cycle. In the cycle I, the classical absorption of students reaches 53%, the second cycle action goes up the classical absorption of 76% students and the third cycle action almost 82% of the classical absorption increases from the results of the study concluded that the problem-based learning model assisted geogebra can improve the students’ spatial ability. Furthermore, student and teacher activity toward geogebra assisted Problem-Based Learning model went run effectively and conducive. The response of students in geometry learning with Geogebra assisted problem-based learning model generally produces a positive impression
BAHAN AJAR PADA MATERI GARIS SINGGUNG LINGKARAN DENGAN PENDEKATAN SAINTIFIK UNTUK SISWA SMP
No full textThis research is motivated by the lack of teaching materials on tangent topic to the circle that is able to facilitate junior high school students through a scientific approach. This research produced teaching materials so-called students' worksheets that can facilitate students. The research used the design research which includes: (1) preliminary design, in this phase the researchers conducted a theory study which followed up by making a Hypothetical Learning Trajectory (HLT); (2) experiment, in this phase, the existing design is tested to the students to investigate the learning process that related to the process of developing students' thinking in situations and learning atmosphere that formed from HLT; (3) retrospective analysis, in this phase, the researchers compare the HLT with the actual student learning process. The results show that the teaching materials that have been developed by considering obstacle learning and preliminary studies are able to facilitate students as a source of support for learning activities
MODEL PEMBELAJARAN MATEMATIKA KNISLEY UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN KONSEPTUAL MATEMATIS SISWA SMP
No full textMathematical conceptual understanding is a provision in solving problems and finding other concepts. Therefore, this research should be conducted to determine the mathematical learning model that can enhance these capabilities. The main objective is to investigate and describe the achievement as well as an increase in the mathematical ability of conceptual understanding both got teaching Knisley mathematics learning model and direct learning model. The method used mixed method (mixed methods) with the incorporation of quantitative and qualitative models. The study design used concurrent embedded design. The population in this research is class VIII SMP with sample class VIII A and B. Class selected as sample using purposive sampling technique. Quantitative data analysis in this study using the samples Independent-T test and Mann-Whitney. Results of descriptive statistical analysis showed the experimental class =0.83, =14.92 and =0.58. And a control class shows = 0.89, = =10.27 and =0.39. Based on the test results of the samples Independent-T test to determine achievement and test scores N-gain KPKM each student obtained the data with sig (one-tailed) and =0.05 is 0.000. Because of sig < 0.05 then rejected that hypothesis is accepted. Thus, the research concludes that the attainment and improved conceptual understanding of mathematical ability of students who get teaching mathematics learning model Knisley better than who received direct instruction