EFEKTIVITAS PEMBELAJARAN MATEMATIKA MELALUI PENERAPAN MODEL KOOPERATIF TIPE NUMBERED HEAD TOGETHER (NHT) PADA SISWA KELAS IX SMP NEGERI 2 KOTABARU
Authors: Radiatul Adawiah  , Rezki Ramdani  , Ernawati  
Published: November 2024

Penelitian ini bertujuan untuk mengetahui efektivitas pembelajaran matematika melalui penerapan model kooperatif tipe Numbered Head Together (NHT) pada siswa kelas IX-C SMP Negeri 2 Kotabaru. Kriteria keefektifan pembelajaran dilihat dari hasil belajar siswa yang  telah mencapai ketuntasan belajar secara klasikal, minimal 75% rata-rata persentase aktivitas siswa dalam pembelajaran matematika dan siswa yang memberikan respons positif terhadap pembelajaran matematika mencapai 75%. Jenis penelitian ini adalah eksperimen One Group Pretest-Posttest Design dengan menggunakan teknik Cluster Random Sampling sebagai pemilihan sampel. Penelitian ini dilaksanakan selama 6 (enam) kali pertemuan. Teknik pengumpulan data yang digunakan adalah tes hasil belajar matematika, lembar observasi aktivitas siswa, dan angket respons siswa. Hasil penelitian ini menunjukkan bahwa,  1) Hasil belajar matematika siswa setelah penerapan model pembelajaran kooperatif tipe Numbered Head Together (NHT) dikategorikaإ “Meningkat” dan “Tuntas” secara klasikal, 2) Aktivitas siswa dalam pembelajaran matematika dikategorikan “Aktif”, dan 3) Respon siswa terhadap pembelajaran matematika dikategorikan “positif”. Berdasarkan hasil penelitian ini, siswa telah memenuhi kriteria keefektifan pembelajaran matematika, sehingga dapat disimpulkan bahwa pembelajaran matematika efektif dilaksanakan melalui penerapan model kooperatif tipe Numbered Head Together (NHT) pada siswa kelas IX-C SMP Negeri 2 Kotabaru.
This study aims to determine the effectiveness of mathematics learning through the application of the Numbered Head Together (NHT) cooperative model to class IX-C students of SMP Negeri 2 Kotabaru. The criteria for learning effectiveness are seen from the learning outcomes of students who have achieved learning completeness classically, at least 75%, the average percentage of student activity in mathematics learning and students who give a positive response to mathematics learning reaches 75%. This type of research is a One Group Pretest-Posttest Design experiment using the Cluster Random Sampling technique as sample selection. This study was conducted for 6 (six) meetings. The data collection techniques used were mathematics learning outcome tests, student activity observation sheets, and student response questionnaires. The results of this study indicate that, 1) Students' mathematics learning outcomes after the application of the Numbered Head Together (NHT) cooperative learning model are categorized as "Increased" and "Completed" classically, 2) Students' activities in mathematics learning are categorized as "Active", and 3) Students' responses to mathematics learning are categorized as "positive". Based on the results of this study, students have met the criteria for the effectiveness of mathematics learning, so it can be concluded that mathematics learning is effectively implemented through the application of the Numbered Head Together (NHT) type cooperative model to class IX-C students of SMP Negeri 2 Kotabaru.