Penelitian ini dilatar belakangi adanya siswa yang tidak dapat menyelesaikan soal pada materi Sistem Persamaan Linear Tiga Variabel dan rendahnya kemampuan siswa dalam mengaitkan masalah dengan kehidupan sehari-hari atau yang bersifat kontekstual. Penelitian ini bertujuan untuk mengidentifikasi kesulitan siswa dalam menyelesaikan materi Sistem Persamaan Linear Tiga Variabel. Subjek dari penelitian ini adalah siswa kelas X Madrasah Aliyah di Cianjur yang berjumlah 30 orang. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif. Instrumen untuk mendapatkan data itu sendiri dilakukan dengan tes yang diberikan kepada siswa berupa lembar soal yang berisi 5 butir soal dengan soal yang memiliki tingkat kesulitan yang berbeda-beda. Hasil yang diperoleh dari penelitian ini adalahkesalahan yang paling sering dilakukan siswa yakni: 1) Siswa tidak menjawab soal 5%, 2) Siswa tidak dapat membuat model matematika 5%, 3) Siswa salah membuat model matematika 10%, 4) Siswa salah melakukan eliminasi 10%, 5) Siswa salah menuliskan tanda operasi pada persamaan untuk dieliminasi 5%, 6) Siswa salah menghitung pada saat mengeliminasi 30%, 7) Siswa salah membuat persamaan baru untuk disubstitusikan20%, 8) Siswa salah memasukan nilai substitusi 25%, dan 9) Siswa salah mengitung pada saat mensubstitusi 40%. dalam menyelesaikan Sistem Persamaan Linear Tiga Variabel.
Penelitian ini dilakukan untuk menganalisis kesalahan siswa dalam menyelesaikan soal kemampuan koneksi matematis pada materi bangun datar segi empat, subjek penelitian yaitu siswa kelas VIII dari salah satu SMP Negri di Cimahi sebanyak 29 siswa. Metode yang digunakan dalam penelitian ini yaitu metode deskriptif dengan pendekatan kualitatif, instrumen yang digunakan yaitu sebanyak empat butir soal dengan kemampuan koneksi matematis siswa. Berdasarkan hasil penelitian ini dapat disimpulkan kesalahan dalam menyelesaikan soal kemampuan koneksi matematis pada materi bangun datar segi empat untuk setiap indikatornya masih tinggi. Pada indikator pertama yaitu mengidentifikasi hubungan berbagai representasi konsep dan prosedur matematika pada soal nomor tiga memperoleh persentase kesalahan sebesar 63%. Untuk indikator kedua yaitu mengidentifikasi hubungan satu prosedur ke prosedur lain dalam represen-tasi yang ekuivalen pada soal nomor satu memperolah persentase kesalahan sebesar 24% dan soal nomor empat memperoleh persentase kesalahan sebesar 40%. Dan indikator ketiga yaitu menjelaskan penerapan topik matematika dalam masalah kehidupan sehari-hari pada soal nomor dua memperoleh persentase kesalahan sebesar 43% Kata kunci: Analisis kesalahan, Kemampuan koneksi matematis, Bangun datar segi empat
In everyday life, mathematics plays an important role, both as a tool, language, mindset, and knowledge, such as numeration systems, currency exchange tools, and so on. Therefore, we should know the role or position of mathematics in human civilization. The selected research is qualitative with a case study method. Two students were selected to be research subjects from five classes in the mathematics education study program. The instrument used in this study was an open interview. Each student is asked questions about their knowledge of the position of mathematics in human civilization. The data analysis used in this research is thematic analysis. The results showed that there were four categories of how mathematics education students responded to the position of mathematics in civilization. The categories are theoretical history student, religious history student, contextual history student, and scientific history student. The four categories will be described in detail in this paper.
Self-adjustment is a process carried out by students in an effort to achieve self-harmony with the environment, so that feelings such as insecurity, disappointment, a sense of wanting to isolate themselves from the environment and others as negative emotions can be removed or avoided from within. student. As above, the ability to adapt is important for every student. Therefore, a measuring instrument is needed to determine the condition of self-adjustment of the self-adjustment questionnaire students, namely using R&D development research (Research and Development) which aims to test the validity and reliability of the self-adjustment questionnaire. With research subjects class XI SMAN 2 Padalarang. And the results of the validity test of this self-adjustment questionnaire state that there are 12 valid questions and the results of the reliability test with a total of 0.453 which are categorized as moderate from 30 questions made by researchers from 25 respondents. Keywords: self-adjustment, validity, reliability
This study intends to explain how the level of body image in class XI students at SMAN 1 Margaasih. The number of samples used as many as 140 students from a total population of 355 students, or if described 87 female students and 53 male students. Among them there are 22% of students aged 17 years, 68% of students aged 16 years and 10% of students aged 15 years. This study uses a descriptive quantitative approach with a random sampling technique. The data collection instrument used was a non-test technique in the form of a questionnaire taken from Maulida (2020). In this study, it was found that the body image of class XI students of SMAN 1 Margaasih was generally in the medium category or as much as 72% (101 students), while in the high category it was 16% (23 students), and the low category was 12% (16 students). . The data obtained shows that female students have body image a lowerthan male students. This can be explained by the presence of 16 students who are categorized as low body image, 14 of whom are female students. This is because women generally have body image a lowerthan men. An example that can be seen is the feeling of inferiority to their physical possessions and often comparing themselves with others who have more physicality than them. The physical can be in the form of height, weight, attractive face, and skin color.Keywords: Body image, Students, SMAN 1 Margaasih
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