Abstract
This research aims to analyze the difference effectiveness of learning model Realistic Mathematics Education (RME) and model learning problem based learning (PBL) to students' mathematical reasoning skills. The design of this research is quasi experiment with pretest-posttest control group design. The population of this study is the students of grade VIII SMPN 1 Watubangga 2015/2016 year that studying about building a flat side space. The data of mathematical reasoning skills is obtained by using the instrument in the form of mathematical reasoning test. Data analysis technique used is descriptive statistical analysis, F test with t test (paired-samples t test and independent-samples t test), at α = 0,05 . Based on the result of analysis of research data obtained that: 1). Student's mathematical reasoning skills before being taught with RME, PBL, and Direct learning models are in the less category after being given learning with the learning model RME, PBL and Direct students' mathematical reasoning skills are in sufficient category. Increased students' mathematical reasoning skills are in the medium category; 2). There is an improvement in students' mathematical reasoning skills after being taught with RME, PBL and Direct learning models; 3). The mathematical reasoning skills of students taught using the RME learning model were not significantly different from those taught by the PBL learning model; 4). There is a difference in the effectiveness of the learning model on improving students' mathematical reasoning skills, which is taught using a learning model RME more effective than students taught by direct learning model; 5). The students' mathematical reasoning skills are taught using the PBL learning model more effective than students taught by direct learning model; 6). Student activity during learning process using RME learning model and PBL learning models, indicating that students are very active.
Highlights
One of the subjects that support the development of science and technology is mathematics
Test the ability of mathematical reasoning given to the experimental group 1 taught by Realistic Mathematics Education (RME), the experimental group 2 taught by Problem Based Learning (PBL), as well as the control class, each performed twice, before giving treatment and after treatment
After comparing the increase in each class through statistical tests, there is a significant difference in the increase in mathematical reasoning skills between the groups of students taught by RME learning with groups of students taught by PBL
Summary
One of the subjects that support the development of science and technology is mathematics. Based on preliminary interviews that has been done by researcher with teacher math of VIII grade and students daily test results obtained information, those are, in particular students' mathematical abilities eighth grade students of SMP Negeri 1 Watubangga, still low with an average of 62.51 completeness value of at least 70 It can be seen from the results of daily test questions in the form of students essay on the material S PLDV shows that they are generally less able to solve problems in aspects of reasoning that is, less ability 1) present a statement in the form of pictures or diagrams, 2) perform mathematical manipulations 3) compile evidence, give reasons 4) drew the conclusion from the statement. PBL is a learning method that uses problems as a first step in collecting and integrating new knowledge (Suradijono, 2004)
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