Efektivitas Model Problem Based Learning Ditinjau dari Kemampuan Komunikasi Matematis Siswa

Abstract

Abstract: The Effectiveness of The Problem Based Learning Model in Terms of Students Mathematical Communication Skills. This research aimed to examine the effectiveness of the problem based learning (PBL) model in terms of students mathematical communication skills. The samples of this research were students of VIIID as many 32 students as experiment class and VIIID as many 29 students as control class which were chosen by cluster random sampling technique. This research used randomized pretest posttest control group design. The research data was obtained by test technique through mathematical communication skills tests instrument which form essay question. Reaserch data analized using One Side Proportion Test and Mann Whitney U test. By the rasults of data analysis the students who got score 71 or more of mathematical communication skill in PBL class were not more than 60 percent of all students in that class. Gain score mathematical communication skill who treated by PBL more than the students who treated by non PBL. The conclusion of this research is that the PBL model was not effective in term of students mathematical communication skills, but the students mathematical communication skills who took PBL  was higher than students who took non PBL.

keywords: problem based learning, mathematical communication, effectivenes

Abstrak: Efektivitas Model Problem Based Learning Ditinjau dari Kemampuan Komunikasi Matematis Siswa. Penelitian ini bertujuan untuk mengetahui efektivitas model problem based learning ditinjau dari kemampuan komunikasi matematis siswa.  Sampel penelitian ini adalah siswa kelas VIII D sebanyak 32 siswa sebagai kelas eksperimen dan siswa kelas VIII F sebanyak 29 siswa sebagai kelas kontrol yang dipilih dengan teknik cluster random sampling. Desain yang digunakan adalah randomized pretest-posttest control group design. Data penelitian diperoleh menggunakan teknik tes melalui instrumen tes kemampuan komunikasi matematis yang berbentuk uraian. Analisis data penelitian ini menggunakan uji Proporsi satu pihak dan uji Mann Whitney U. Dari hasil analisis data diperoleh bahwa siswa yang memiliki nilai kemampuan komunikasi matematis mencapai 71 setelah mengikuti model PBL tidak lebih dari 60 persen. Peningkatan kemampuan komunikasi matematis siswa yang mengikuti model PBL lebih dari peningkatan kemampuan komunikasi matematis siswa yang mengikuti model non PBL. Kesimpulan dari penelitian ini adalah model PBL tidak efektif ditinjau dari kemampuan komunikasi matematis siswa, akan tetapi peningkatan kemampuan komunikasi matematis siswa yang mengikuti PBL lebih dari siswa yang mengikuti non PBL.

kata kunci: problem based learning, komunikasi matematis, efektivitas

DOI: http://dx.doi.org/10.23960/jpmipa/v19i2.pp99-110