Efektivitas Problem Based Learning Terhadap Kemampuan Komunikasi Matematis Siswa

This research aimed to know the effectiveness of problem based learning towards students' mathematical communication skill. The population of this research was students of grade VII in SMP Negeri 3 Metro in academic year of 2017/2018 that were distributed into 7 classes. The samples of this research was students of class VII-D and VII-E which were chosen by purposive sampling technique. The design of this research was pretest-posttest control group design. Research data were obtained through test of mathematical communication skill. The statistical test used was t-test and z-test. Based on the result of the research, it was concluded that problem based learning was not effective towards students' mathematical communication skill. Penelitian ini bertujuan untuk mengetahui efektivitas problem based learning terhadap kemampuan komunikasi matematis siswa. Populasi pada penelitian ini adalah seluruh siswa kelas VII SMP Negeri 3 Metro tahun pelajaran 2017/2018 yang terdistribusi dalam 7 kelas. Sampel penelitian ini adalah siswa kelas VII-D dan VII-E yang dipilih dengan teknik purposive sampling. Desain penelitian yang digunakan adalah pretest-posttest control group design. Data penelitian diperoleh melalui tes kemampuan komunikasi matematis siswa. Uji statistik yang digunakan yaitu uji-t dan uji-z. Berdasarkan hasil penelitian dapat disimpulkan bahwa problem based learning tidak efektif terhadap kemampuan komunikasi matematis siswa. Kata kunci: efektivitas, komunikasi matematis, problem based learnin