International Journal of Trends in Mathematics Education Research
Not a member yet
230 research outputs found
Sort by
Developing an Assessment Instrument of Mathematical Problem-Solving Skills in Senior High School
Get PDFThis study aims to develop an assessment instrument of mathematical problem-solving skills in senior high school. The developed assessment instrument includes instrument outlines, items of mathematical problem-solving skill in senior high school instrument, and scoring guidelines. The development procedures include 1) Planning the test, 2) Trying out the test, and 3) Establishing the Validity Test, 4) Establishing Test Reliability, and 5) Interpreting the Test Score. The trial was conducted on 508 respondents involving 4 experts and 1 practitioner as raters. The interpretation of the results of the trial is intended to find out the instrument construction and the validity and reliability of the assessment instrument. A problem-solving skill assessment instrument has been validated by the raters. Indicators to be measured include understanding problems, formulating strategies, implementing the strategies, and interpreting the results. The reliability coefficient of the results of the trial is categorized as good in which the Cronbach Alpha value is 0.82. Therefore, the developed instrument can be used to measure the mathematical problem-solving skills in senior high school
Development of Problem Based Learning Method To Increase Students’ Mathematical Problem Solving Ability at Numbers Theory Courses
Get PDFThis article presents development reasearh result of problem based learning method to increse students’mathematical problem solving ability conducted at 4th semester students in 2016 academic years at numbers theory course. The aim of the research is to describe development process of problem based learning method corresponding theoretical concepts to increase mathematical problem solving ability with learning device includes: (a) RPS and (b) learning media which be able to be applied in mathematical learning process and testing learning method which has been developed.This research uses mixed method, qualitative method reviews and describes implementation process of learning method, while quantitative method uses experimental design (pretest and postest) to discover its effects towards students whether learning method which developed proven effective to increase students’ problem solving ablity. Based on the results of research and discussion, the study concluded that the strategy of mathematics which has been developed and tested can improve the ability of solving mathematical problems very well (excellent)
The Implementation of 2013 Curriculum in Mathematics Learning at SMA Muhammadiyah 3 Tangerang
Get PDFThe objectives in this study are 1) Describe the implementation of the 2013 curriculum in mathematics learning, 2) Formulate what factors support and hinder the implementation of the 2013 curriculum. This study is a type of qualitative research using a descriptive approach. The study subjects were mathematics teachers who taught in class X of SMA Muhammadiyah 3 in Tangerang City. Data collection techniques used are in-depth interviews, observation, documentation. Technical data analysis is done by reducing, presenting data, and verification. The results showed that the X grade mathematics teacher in implementing the 2013 curriculum was still lacking. This can be seen by teachers not compiling RPPs based on the 2013 curriculum. As a result, the learning process is not in accordance with the demands according to 2013 curriculum references. Factors that prevent teachers from implementing the 2013 curriculum are teachers who have not attended 2013 curriculum training, teachers have not joined and are taking part in routine activities in the city high school MGMP routine Tangerang, schools have not facilitated 2013 curriculum training activities and the lack of existing infrastructure in the school environment to support the implementation of the 2013 curriculu
Profile of High Order Thingking Skill (HOTS) of Junior High School Students’ Grade 8 in Solving Linear Equation System Problems Based on Kinesthetic and Visual Learning Styles
Get PDFThis qualitative research aims to describe profile high order thinking skill (HOTS) of Junior high school students’ grade 8 in solving linear equation system problems based on kinesthetic and visual learning styles. In collecting data, mathematics ability test and learning style questionnaire aims to select students to be research subjects. Then, problem solving tests to determine the high order thinking skills and interviews were used to obtain data on students' high order thinking skills that were not obtained from problem solving tests. There are 3 (three) aspects of HOTS in this study which are analyzing, evaluating and creating. The results of the study show that in the aspect of analyzing, students with kinesthetic and visual learning styles can distinguish the information needed, know what is sought and know the relationship between information. In creating aspect, kinesthetic and visual aspects can know ideas, strategies used and can implement these ideas and strategies in solving problems. Whereas in the Evaluation aspect, kinesthetic uses a strategy in checking the truth in the answer but the visual does not use the strategy. Thus, it can be concluded that the differences of kinesthetic students and visual students lay on strategies used in checking the truth of the answers of the problem given
Implementation of Basic Local Alignment Search for Detection H1N1 Sequence Alignment
Get PDFBioinformatics is a science that studies the management and analysis of biological information. Bioinformatics includes application of mathematics, statistics, and informatics to biological problems to solve. Bioinformatics can store data generated by the genome project with regular and high degree of accuracy. Basic local alignment search is one of the methods used to process penyejajaran molecular data sequences. In 2009, there is a virus that attacks the respiratory tract that is the swine flu. The virus is spread around the world, so that retrieved the journal research on diverse virus DNA sequences in different endemic countries. Therefore, in this study will be explained about the process sequence alignment of the H1N1 swine flu virus. H1N1 Weiss AF 250365.2 and H1N1 Swine AF250364.2 have 90% similarity level
Student’s Difficulty Analysis Through Realistic Mathematics Education Using Batak Toba Cultures
Get PDFThis study aims to describe students' difficulties in solving numerical patterns in the context of the Toba Batak ethnic culture after the implementation of the Realistics Mathematic Education Approach in the context of the Toba Batak Tribe Culture. Subjects in this study were students of class VIII Junior High School (SMP) totaling 32 people. The data collection tool used in this study is a test that totals ten questions in the form of a description. This type of research is a qualitative descriptive study. Data collection techniques are carried out by tests, observation, interviews, and documentation. Data analysis techniques were carried out by data reduction, data presentation, and concluding. The results showed that students had difficulty determining the sequence of numbers, determining the configuration of a sequence of numbers, determining the arithmetic series, determining the number of n first arithmetic series terms, determining the first term n row geometry, and determine the number of n first terms of the geometry series. The causal factor is that students are not able to distinguish the general formula concept of a sequence and the concept of configuration patterns from a sequence of numbers, operating error calculations and not understanding integer ranks
Junior High School Students Ability to Use The Polya’s Step to Solve Mathematical Problems Through Problem Based Learning
Get PDFThis study purpose to determine the ability of students to use Polya’s step in solving mathematical problems through Problem Based Learning. This study used a quantitative approach with a total sample, as many as 26 students of 7th grade of Junior High School 2 Kusan Hulu student. Problem Based Learning activities held in four meetings and two tests. The test results were analyzed based on the Polya’s problem solving steps, calculated with the percentage in each step. The results showed that the ability of junior high school students to use Polya’s steps in solving mathematical problem through Problem Based Learning was: 1) ability to understand problems at 83.80%, 2) ability to plan problem solving at 71.42%, and 3) ability to do counting at 75.61%
Mathematics Preservice Teachers’ Views on Mathematical Literacy
Get PDFThis study aims to know mathematics preservice teachers’ common sense understanding of mathematical literacy. The results will later be used to design a learning program to introduce mathematical literacy to preservice teachers so that they have a better understanding of mathematical literacy. Data were collected by giving questionnaires to one hundred and eight mathematics preservice teachers. The result showed that mathematics preservice teachers’ views on mathematical literacy can be categorised into 5 areas: 1) ability that has to do with problems in people’s daily life, 2) communicating using mathematics concepts and properties, 3) interpreting mathematical sentences into everyday language or vice versa, 4) activity related to reading and writing about mathematics, 5) basic knowledge of mathematics. Preservice teachers agreed that learning mathematics in schools should connect mathematical concepts with real-life problems. They are also ready to increase the mathematical literacy abilities of their future students
Representation of Trigonometry Graph Funcsion Colage Students Using GeoGebra
Get PDFThis descriptive qualitive research aims to describe the forms of mathematics representation that appear among college students whom try to understand the relation between the change of trigonometry function coefficient and its graph through GeoGebra media. A class consists of 30 college students choosen as research subjects and they are given worksheets. From their work, it can be seen that there are 3 types of tendency of representation forms which is used by college students to solve their worksheet. From each type of tendency, a worksheet of student is choosen randomly for further investigation since it can represent others’ work. The research result shows that college students represent GeoGebra view in 3 forms. They are verbal representation, mathematics expression representation, and visual representation
Improving Students’ Learning With NHT Model of Teaching In Natural Science Courses
Get PDFThe Numbered Heads Together (NHT) model of learning enables students to grasp the purpose behind the teacher’s instruction in order for the students to become motivated to learn from the teacher. The subjects in this study were students from class A, a total of 28 students. Each of the conducted studies involved planning, implementation, observation and reflection stages. Data collection was performed using both observation and tests. According to the results of the initial test (pre-test)-before the action-the grade average was 56.4 with the level of students’ learning outcomes as many as 7 students (25%) still scoring very low, but the action-incorporating the Numbered Heads Together (NHT) learning model by the teacher in the first cycle-led to some improvement. Improved learning outcomes obtained following the first cycle, with the class average score being 62.3, indicating that the level of mastery under standard instruction amounted to as many as 13 students (46.4%) still classified as moderate, whereas students’ activities or actions based on observations made by peers were relatively low at 60.5%. As the aforementioned increase did not reach the set standard values, efforts needed to be made to improve and develop during the second cycle. Following the second cycle, the post-test revealed further improvement in the average grade value, which increased to 70.4, and the level of students’ learning outcomes under standard instruction with as many as 19 students (67.9%) belonging to the good category; the standard instruction underwent changes in learning and students’ actions or activities were classified as good, reaching as high as 80.3.