摘要：Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan komunikasi
matematis siswa setelah diberikan pembelajaran Brain Based Learning pada siswa MTs,
serta mengetahui perbedaan kemampuan komunikasi matematis setelah diberikan
pembelajaran Brain Based Learning dan pembelajaran konvensional pada siswa MTs.
Metode penelitian yang digunakan adalah penelitian quasi eksperimen dengan desain
control group pretest-posttest design. Populasi dalam penelitian ini adalah seluruh siswa
kelas VIII MTsN 2 Banda Aceh. Pengambilan sampel dilakukan dengan
menggunakan simple random sampling, yang terdiri dari dua kelas yaitu kelas VIII4
sebagai kelas eksperimen dan kelas VIII2 sebagai kelas kontrol. Pengumpulan data
digunakan dengan menggunakan lembar tes kemampuan komunikasi matematis.
Teknik analisis data yang digunakan yaitu uji N-Gain, uji-t independen. Dari hasil
penelitian diperoleh peningkatan kemampuan komunikasi yang diberikan
pembelajaran Brain Based Learning dapat meningkatkan kemampuan komunikasi
matematis siswa serta kemampuan komunikasi matematis yang diberikan
pembelajaran Brain Based Learning lebih baik daripada kemampuan komunikasi
matematis siswa yang memperoleh pembelajaran konvensional.
其他摘要：This study aimed at determining the improvement of students' mathematical communication
skills after the Brain Based Learning model applied in MTs students, and the differences of the
mathematical communication skills applied by the Brain Based Learning model and those
applied in conventional learning of MTs students. The research method was quasiexperimental
research with a pretest-posttest design group control design. The population in
this study were all VIII students of MTsN 2 Banda Aceh. Sampling was done by using simple
random sampling, which consisted of two classes namely class VIII4 as the experimental class
and class VIII2 as the control class. The data collected used a mathematical communication
ability test sheet. The data analysis techniques used in this research were N-Gain test, independent t-test. From the research results obtained (1) N-Gain Test with an average value
obtained 0.54 with the category "Medium”. So it can be concluded that by applying the Brain
Based Learning model can improve students' mathematical communication skills. (2) Based on
independent t-test, obtained tcount = 4.32 and ttable = 1.67, then tcount > ttable, this means
reject H0 accept H1, it can be concluded that students' mathematical communication skills
applied to the Brain Based Learning learning model are more better than students'
mathematical communication skills applied to conventional learning.
关键词：Pembelajaran Brain Based Learning; Kemampuan Komunikasi Matematis
其他关键词：Brain Based Learning Model; Mathematical Communication Ability
