摘要：Tujuan penelitian ini adalah mengetahui keefektifan penerapan Brain Based Learning berbasis kinerja proyek terhadap kemampuan komunikasi matematis peserta didik materi dimensi tiga. Jenis penelitan adalah pra-eksperimen dengan randomized control group only design yang akan diberlakukan pada dua kelas sampel dan mengambil peserta didik kelas X MA NU Banat sebagai populasi. Kelas eksperimen diberi perlakuan berupa pembelajaran dengan menggunakan Brain Based Learning berbasis kinerja proyek dan kelas kontrol berupa pembelajaran ekspositori. Data dikumpulkan melalui dokumentasi dan tes komunikasi matematis. Hasil analisis data menunjukkan bahwa: 1) hasil tes komunikasi matematis peserta didik pada kelas eksperimen telah mencapai KKM individual,2) hasil tes komunikasi matematis peserta didik pada kelas eksperimen belum mencapai KKM klasikal,3) rata-rata nilai tes komunikasi matematis peserta didik yang dikenai pembelajaran dengan menggunakan Brain Based Learning berbasis kinerja proyek lebih baik daripada peserta didik yang dikenai pembelajaran ekspositori.
其他摘要：The purpose of this research is to know the effectiveness of the application of Brain Based Learning with projects work to Mathematics communication ability of students in threedimentional space topic. This research was preexperimen randomized control group only design who apply to two sample class and took the students of X grade in MA NU Banat Kudus as the population. Experiment class given a learning uses Brain Based Learning with projects work and control class given a learning uses expository method. Data were collected through documentation and question test. Data analysis shows that 1) the mathematics communication’s test results showed that the student at experiment class has reached the individual completeness,2) the mathematics communication’s test results showed that the student at experiment class hasn’t reached the classical completeness,3) the score average of mathematics communication’s test of experiment class who given a learning uses Brain Based Learning with projects work are better than control class who given a learning uses expository method.
其他关键词：Brain Based Learning; Effectiveness; Mathematics Communication
