Abstract
This study aims to analyze the differences in the increase in problem-solving abilities between students who are given the problem-based learning model and those given the numbered heads together learning model in terms of gender and analyze the student's answer process in solving problems on problem-solving abilities given the problem based learning model and those given numbered heads together learning model. The data were obtained through tests in the form of descriptions, with the reason that through this essay test, it could be seen that students 'thought processes and students' accuracy through the steps taken in solving the questions. The test instrument developed by researchers from the Two Variable Linear Equation System material will be used to measure problem-solving abilities. Data were analyzed by ANACOVA test. The population in this study were all students of class VIII SMP Private Bina Satria Mulia Medan. While the sample in this study was class VIII-1 as the experimental class 1 with the Problem Based Learning (PBL) learning treatment and class VIII-2 as the experimental class 2 which was treated with the Numbered Heads Together (NHT) learning model. Based on the results of the covariance analysis for the model, it was obtained that Fcount = 57.301; db = (1.55), and p-value = 0.000. Because of the sig level. 0.000 <0, 05 then H0 is rejected and H1 is accepted. Thus it can be concluded that there are differences in mathematical problem solving abilities between students who are given Problem Based Learning (PBL) learning and Numbered Heads Together (NHT) learning after controlling the pretest. Descriptively, the group average for Problem-Based Learning (PBL) learning is 80.08 and for the Numbered Heads Together (NHT) learning group is 75.67. While the results of the descriptive research based on gender in the experimental class I and experiment II showed that the problem solving abilities of male students were higher than female students. In the experimental class I, the mean score of male students was 81.47 and female students were 78.27. In the experimental class II, the mean score of male students was 77.22 and female students were 73.33. Keywords: Mathematical Problem Solving Ability, Problem Based Learning (PBL), Numbered Heads Together (NHT), Gender DOI: 10.7176/JEP/12-10-12 Publication date: April 30 th 2021
Highlights
The importance of education is a measure of the progress of a nation
The Indonesian government has made various efforts to improve the quality of teaching and improve student mathematics learning outcomes, because mathematics is a very important science in every level of education pursued by every Indonesian citizen
C, students already understand the problem solving strategy according to their mathematical model and can solve problems well and can check the correctness of the answers
Summary
The importance of education is a measure of the progress of a nation. A developed nation is a nation that has quality human resources, both in terms of spiritual, intelligence and skills. That with quality human resources, a nation will be able and proactive in responding to the challenges of the ever-changing times. To develop quality human resources, a quality education is needed. One way that can be done to achieve this goal is continuous renewal in the field of education, especially mathematics. The Indonesian government has made various efforts to improve the quality of teaching and improve student mathematics learning outcomes, because mathematics is a very important science in every level of education pursued by every Indonesian citizen. The government's efforts are to develop curricula, provide training to teachers, complete educational infrastructure and even improve teacher welfare. Along with the development of the internet, learning strategies have shifted and various information and communication technology-based learning strategies have emerged from e-learning models, smart classroom technology, virtual classrooms, belded learning, etc. (Fitri & Zahari, 2019)
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