摘要：Tujuan penelitian ini adalah untuk mengetahui (1) kemampuan pemecahan masalah siswa yang diajar menggunakan model pembelajaran GDI (Guided DiscoveryInquiry) berbantuan SMB (Smart Mathematics Board) dapat mencapai ketuntasan belajar,(2) keefektifan model pembelajaran GDI berbantuan SMB dibandingkan model pembelajaran ekspositori. Populasi dalam penelitian ini adalah siswa kelas VII SMP Negeri 13 Semarang Tahun Pelajaran 2012/2013. Dengan teknik simple random sampling diperoleh dua kelas sampel yaitu kelas VII B sebagai kelas eksperimen dan kelas VII C sebagai kelas kontrol. Data diperoleh dari metode dokumentasi dan tes. Teknik analisis data menggunakan uji ketuntasan belajar (uji t dan uji proporsi) dan uji beda rata-rata. Hasil penelitian menunjukkan bahwa kelas eksperimen telah mencapai ketuntasan belajar. Hasil uji beda rata-rata menunjukkan bahwa rata-rata kemampuan pemecahan masalah siswa kelas eksperimen lebih baik daripada kelas kontrol. Berdasarkan uraian di atas dapat disimpulkan bahwa model pembelajaran GDI berbantuan SMB efektif terhadap kemampuan pemecahan masalah siswa kelas VII SMP Negeri 13 Semarang pada materi segiempat.
其他摘要：The purposes of this research to know: (1) problem solving abilities of students who were taught using GDI learning model aided SMB can achieve learning completeness,(2) the effectiveness of GDI learning model aided by SMB towards problem solving ability better than the expository learning model. The population in this research was VII grade students of SMP N 13 Semarang. By simple random sampling technique obtained two classes as a research sample,namely class VII B as the experimental class and class VII C as the control class. The data was collected by the documentation methods and test. The technique of analyzing data by using learning completeness (t test and proportion test) and difference of means test. The results of the reserch that the experiment class had achieve learning completeness learning. Test difference of the average problem solving abilities the data showed that the average problem solving abilities experiment class better than the control class. Based on the description above it can be concluded that the application of GDI learning model aided by SMB was effective towards problem solving ability of VII grade students of SMP N 13 Semarang at the material quadrilateral.
