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PEMBELAJARAN KELILING BANGUN DATAR MENURUT STANDAR NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS (NCTM) DENGAN SETTING KOOPERATIF PADA SISWA KELAS 3 SD MUHAMMADIYAH 9 MALANG Dyah Worowirastri Ekowati e-mail: dyah_umm@yahoo.com Abstract: The purpose of this research is produce the material circumference of plane according to standart National Council Of Teachers Mathematics (NCTM) with cooperative setting. To get the purpose of this research used qualitatif research of action class. The study circumference of plane according to standart National Council Of Teachers Mathematics (NCTM) with cooperative setting in this research do with developed of 4 components NCTM, there are assignment, discourse, environment and analysis. The steps of this study are identification of the problem, design of act, collect data, and analysis data which all do in two cycles. Based on the result of study, it is ascertainable the average of score the result of study had been around increase. At the average of score in post-test first cycle as big as 71.72 and then the average of score in post-test second cycle had been around increase become 85.68. Beside that it is ascertainable, the completeness result of study in first and second cycle had been around increase, as big as 72,41% the students get score 65 in first cycle and increase becomes 96.55% in second cycle, this case is getting better of the success of criteria is 80%. Whereas in average score process of the study increases, at first cycle as big as 94.55% increase at second cycle becomes 98.87%. Abstrak: Penelitian ini bertujuan untuk menghasilkan pembelajaran keliling bangun datar menurut standar National Council Of Teachers Of Mathematics (NCTM) dengan setting kooperatif. Untuk mencapai tujuan penelitian tersebut digunakan penelitian kualitatif jenis penelitian tindakan kelas. Pembelajaran keliling bangun datar menurut standar National Council Of Teachers Of Mathematics (NCTM) dengan setting kooperatif dalam penelitian ini dilakukan dengan mengembangkan 4 komponen NCTM yaitu tugas, wacana, lingkungan dan tugas. Adapun langkah-langkah pembelajarannya adalah identifikasi masalah, perancangan tindakan, pengumpulan data, serta analisis data yang semuanya dilaksanakan di dalam dua siklus. Berdasarkan hasil tes pembelajaran, diketahui rata-rata nilai tes hasil belajar siswa mengalami peningkatan. Pada rata-rata nilai pada tes akhir siklus 1 sebesar 71.72, dan kemudian rata-rata nilai pada tes akhir siklus II mengalami peningkatan menjadi 85.68. Selain itu diketahui pula, bahwa ketuntasan hasil belajar pada siklus I dan II mengalami peningkatan, sebanyak 72,41% siswa telah mencapai skor 65 pada siklus I dan meningkat menjadi 96.55% pada siklus II, hal ini melebihi kriteria keberhasilan yaitu 80%. Pada rata-rata nilai proses pembelajaran mengalami peningkatan, pada siklus I sebesar 94.55% meningkat pada siklus II menjadi 98.87%. Kata Kunci: pembelajaran keliling bangun datar, standar National Council Of Teachers Of Mathematics (NCTM), setting kooperatif

jp2sd (jurnal pemikiran dan pengembangan sekolah dasar)/jurnal pemikiran dan pengembangan sekolah dasar

PEMBELAJARAN KELILING BANGUN DATAR MENURUT STANDAR NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS (NCTM) DENGAN SETTING KOOPERATIF PADA SISWA KELAS 3 SD MUHAMMADIYAH 9 MALANG