Riajanto, Marchasan Lexbin Elvi Judah
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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

Abstract

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

Abstract

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

Abstract

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.