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ANALISIS KESULITAN SISWA SMP DALAM MENYELESAIKAN SOAL MATERI TEOREMA PYTHAGORAS Wulandari, Lila; Riajanto, Marchasan Lexbin Elvi Judah
Jurnal Riset Pendidikan dan Inovasi Pembelajaran Matematika (JRPIPM) Vol 3, No 2 (2020): JRPIPM April 2019 Volume 3 Nomor 2
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrpipm.v3n2.p61-67

Difficulties experienced by students in learning greatly affect the achievement of student learning outcomes. This study aims to describe the results of the identification of the types of difficulties and the causes of student difficulties when solving problems based on Polya stages. This type of research is descriptive qualitative with the instrument used in written tests. The subjects of the research were 36 students of class IX at SMP Negeri 9 Cimahi. Based on the analysis that has been done, it can be concluded that the difficulties experienced by junior high school students when completing the Pythagorean theorem questions in the school are 1) difficulty understanding the problem 100%, 2) difficulty planning the completion of 40%, 3) difficulty implementing the plan 54.4%, and 4) difficulty in re-checking 76.7%. The causes of difficulties include 1) students are not accustomed to writing things that are known and asked of a problem 2) students are not accustomed to drawing conclusions from a mathematical problem 3) Concept errors because students do not understand the concept of the material. So, it is necessary to improve the learning process that prioritizes learning concepts rather than memorizing. Students must be accustomed to solving the application problems of a material. So, students will be able to solve contextual problems related to the material.

Analisis Kesulitan Siswa SMP dalam Menyelesaikan Soal Materi Teorema Pythagoras Wulandari, Lila; Riajanto, Marchasan Lexbin Elvi Judah
Jurnal Riset Pendidikan dan Inovasi Pembelajaran Matematika (JRPIPM) Vol 3, No 2 (2020): JRPIPM April 2020 Volume 3 Nomor 2
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrpipm.v3n2.p61-67

Difficulties experienced by students in learning greatly affect the achievement of student learning outcomes. This study aims to describe the results of the identification of the types of difficulties and the causes of student difficulties when solving problems based on Polya stages. This type of research is descriptive qualitative with the instrument used in written tests. The subjects of the research were 36 students of class IX at SMP Negeri 9 Cimahi. Based on the analysis that has been done, it can be concluded that the difficulties experienced by junior high school students when completing the Pythagorean theorem questions in the school are 1) difficulty understanding the problem 100%, 2) difficulty planning the completion of 40%, 3) difficulty implementing the plan 54.4%, and 4) difficulty in re-checking 76.7%. The causes of difficulties include 1) students are not accustomed to writing things that are known and asked of a problem 2) students are not accustomed to drawing conclusions from a mathematical problem 3) Concept errors because students do not understand the concept of the material. So, it is necessary to improve the learning process that prioritizes learning concepts rather than memorizing. Students must be accustomed to solving the application problems of a material. So, students will be able to solve contextual problems related to the material.

PEMBELAJARAN ERA PANDEMI COVID-19 BERKARAKTERISTIK REALISTIC MATHEMATICS EDUCATION PADA KETERCAPAIAN KEMAMPUAN PEMAHAMAN GEOMETRIS SISWA KELAS VII Riajanto, Marchasan Lexbin Elvi Judah
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 2 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i2.p%p

Obstacles in learning in the era of the Covid 19 pandemic appear real and it is natural because of unpreparedness for situations that suddenly change. But in line with the necessity for the continuity of education which includes, among other things, the necessity of continuing learning, the only option available is an option, namely distance learning. This study aims to analyze the achievement of students' geographical abilities during the COVID-19 pandemic. The research subjects were Grade VIII students of the 2020/2021 school year from two classes at SMPN Cianjur, West Java, totaling 86 students. The test instrument used in this study was a description test that measured the mechanical understanding ability of grade VII students. The results of this study were students 'achievement in geometric comprehension ability was still very low, seen from the students' achievement scores, almost all of them were below 0.30. The conclusion of this study is that the achievement of low mathematical abilities or the low level of mastery of students' mathematical concepts is a problem that must be taken seriously which, among others, can be done by developing learning.

Model pembelajaran berbasis masalah pada peningkatan kemampuan pemahaman konsep matematis peserta didik kelas VIII pada materi sistem persamaan linear dua variabel Lestari, Fauziah; Minarti, Eva Dwi; Riajanto, Marchasan Lexbin Elvi Judah
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 8 No. 1 (2025): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v8i1.25450

This study aims to evaluate the extent to which students understanding of mathemmatical concepts improves when thaught using the problem based learning model compared to those taught using the conventional model, discovery learning. The research employs an experimental method with a quasi eksperimental design, dividing students into two groups: an experimental class and a control class. The study’s populasi includes all eight grade students at SMP Terpadu Al Mumin. Data Collection was carried out using to measure student’s understanding of mathematical concepts. The collected data were then processed using IBM SPSS 26, with data analysis encompassing normality tests, homogenity tests, and independent two sample t-test. The results indicate that students taught using the problem based learning model show more effective mathematical conceptual understanding compared to those taught using the conventional learning model. Additionally, there was a significant improvement in the understanding of mathematical concepts among students exposed to the problem based learning model compared to those using the conventional teaching method.

Pendekatan Contextual Teaching and Learning (CTL) berbantuan aplikasi scratch pada kemampuan koneksi matematis siswa kelas VIII Agustin, Rosiana; Minarti, Eva Dwi; Riajanto, Marchasan Lexbin Elvi Judah
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 8 No. 3 (2025): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v8i3.25303

This research is to find out whether the mathematical connection abilities of students who use the Contextual Teaching and Learning approach assisted by the Scratch application are better than students who use ordinary learning, a scientific approach. This type of research is quantitative research with a quasi-experimental design in the form of Pretest Posttest Nonequivalent Control. Class VIII students of SMP Negeri 4 Cimahi were the subjects of this research. Class VIII-K is the sample for the experimental class and class VIII-L is the control class. The test instrument used is 4 questions on mathematical connection abilities. The data analysis techniques in this research are normality test, homogeneity test and independent two-sample t-test. The research results show that the mathematical connection abilities of students who use the Contextual Teaching And Learning learning model are better than students who use the normal approach. The average ability of students is moderate because students do not focus on studying and steal time during learning for other activities.

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