The effect of Double Loop Problem Solving (DLPS) on critical thinking skills and mathematical problem solving abilities. (February 2020)

• Record Type: Journal Article
• Authors: Muhammad, M; Purwanto, J
• Is Part Of: Journal of physics. Volume 1469(2020)
• Publication Date: 2020-02
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1469/1/012172
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: This research aimed to identify the effect of DLPS model on students' critical thinking skills and mathematical problem-solving abilities. The variables involved in this research were thinking skills and mathematical problem-solving abilities as independent variables, and DLPS model as a dependent variable. One of the best learning strategies to encourage active thinking and problem-solving is the Double Loop Problem Solving (DLPS) model. DPLS model is a learning model of mathematical problem-solving approach that emphasizes students to find the main cause of the existence of a problem. This is in line with students' mathematical problem-solving abilities that require the student to understand problems, plan or design problem-solving strategies, carry out calculations and verify the truth of the outcome or solution. The population of this study was the students at seventh grade in Junior High School State 1 Rembang, Purbalingga Regency, even semester in the school year 2017/2018. There was selected seventh grade of class B as experimental with 34 students and seventh grade of class E as control class with 34 students. The summary of the hypothesis testing, with the help of the SPSS program, is presented. Using Kolmogorov-Smirnov test for normality test and Levene's test for equality of variances for homogeneity test, obtained significant value are 0.057; 0.145 and 0.168; 0.062 0.063; 0.681 and 0.244; 0.171 and 1.306; 2.359 more than alpha 0.05. It means that the students' critical thinking skills and mathematical problem-solving abilities fulfilled assumption of normality test and homogeneity test. After conducting a series of normality and homogeneity tests, it was concluded that t-test for equality of means was used for hypothesis testing. The significant value is 0.019; 0.012 less than alpha 0.05. So that H0 is rejected, it means that students' critical thinking skills and mathematical problem-solving ability taught by using DLPS model are better than students' critical thinking skills and mathematical problem-solving ability taught by conventional learning. In other words, the DLPS model influences or effects on students' critical thinking skills and mathematical problem-solving abilities.