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Journal : Lensa Pendas

Pengaruh Kemampuan Berpikir Kritis Siswa dalam Pembelajaran Matematika Reskinda Ramadhani; Lintang Kusumawardani; Hazna Dyah Ekaputri; Intan Suryaningrum; Wieline Dewi Azzahra; Nabila Khoirunnisa
Jurnal Lensa Pendas Vol 8 No 2 (2023): September
Publisher : Universitas Muhammadiyah Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33222/jlp.v8i2.3045

Abstract

The purpose of this study was to determine students' critical thinking skills and solve math problems in the lower grades of elementary school. This type of research is quantitative descriptive research. Determination of samples and representatives in this study is to use non-probability sampling techniques with saturated sampling techniques because the number of small population is less than 20 people. The sample of this research was class II students at SDN 02 Karangwage, totaling 19 students. In this study using a questionnaire with a total of 6 questions to test students' criticality in thinking and solving math problems in the lower grades of elementary school. The data used in analyzing is the t one sample test with the help of the SPSS application. The results of this study showed that most of the students already had the ability to think critically to solve math problems as evidenced by scores that were higher than KKM (> 75). However, there is still 1 student whose score is not too high from the KKM, which is 75.5 of the total scores obtained by their friends. Based on these data it is concluded that the value of t count = 6.649 and also sig.(2-tailed) obtained is 0.000, which means the value of sig.(2-tailed) < 0.05 then H0 is rejected. So that students' critical thinking skills affect the results of learning mathematics.
Analisis Kemampuan Penalaran Matematis Siswa SD Kelas IV Pada Materi Bilangan Bulat : Studi Kasus di SD Pasucen 02 Diah Fatmasari; Nabila Khoirunnisa; Lovika Ardana Riswari
Jurnal Lensa Pendas Vol 8 No 2 (2023): September
Publisher : Universitas Muhammadiyah Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33222/jlp.v8i2.3120

Abstract

The purpose of this study was to find out and analyze students' mathematical reasoning abilities through integer problems. This research uses a qualitative approach with a case study approach. Data collection technique using purposive sampling. Out of 20 students in grade IV SD Pasucen 02, only 3 students were used as informants, selected based on criteria of high, medium and low ability. The research provided mathematical reasoning questions which were analyzed based on the results and student answers. The results showed that 1 student met the high ability criteria, 1 student met the medium ability criteria, 1 student met the low ability criteria.