EFEKTIVITAS MODEL PROJECT BASED LEARNING (PJBL) DENGAN MATERI BANGUN RUANG SISI DATAR TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA KELAS VIII SMP
Abstract
Abstrak
Matematika berasal dari bahasa yunani mathemtica yang diambil dari bahasa yunani mathemtike yang mempunyai arti “relating to learning”. Istilah tersebut memiliki akhir kata mathema yang berarti belajar ( berpikir). Kemampuan berpikir siswa matematika khususnya di tingkat sekolah menengah pertama (SMP) masih belum pengembangan strategi pembelajaran matematika yang efektif, khususnya dalam meningkatkan kemampuan berpikir kritis siswa pada materi bangun ruang sisi datar dan juga dapat menjadi acuan bagi guru. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian eksperimen. Teknik analisis data menggunakan rumus Uji-T. Hasil pengujian mempeoleh temuan bahwa: Hal ini dapat dilihat dari nilai tobs > ttabel atau 21,16 > 0,152 pada taraf signifikan 5% yang berarti Ho ditolak dan H1 diterima. Maka dapat disimpulkan bahwa penggunaan model pembelajaran Project Based Learning (PJBL) efektif terhadap peningkatan kemampuan berpikir kritis siswa.
Kata kunci: berpikir kritis, matematika, pjbl, post-test
Abstract
Mathematics comes from the Greek mathemtica which is taken from the Greek mathemtike which means "relating to learning". This term ends with the word mathema which means learning (thinking). The thinking abilities of mathematics students, especially at junior high school (SMP) level, have yet to develop effective mathematics learning strategies, especially in improving students' critical thinking skills in flat-sided geometric material and can also be a reference for teachers. The type of research used in this research is experimental research. The data analysis technique uses the T-test formula. The test results showed that: This can be seen from the value of tobs > ttable or 21.16 > 0.152 at the 5% significance level, which means Ho is rejected and H1 is accepted. So it can be concluded that the use of the Project Based Learning (PJBL) learning model is effective in improving students' critical thinking abilities.
Keywords: critical thinking, mathematics, learning, post-test
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