Abstrak

Penelitian ini bertujuan untuk mendeskripsikan keterlaksanaan, aktivitas siswa, keterampilan komunikasi siswa, serta ketuntasan hasil belajar ranah kognitif siswa selama diterapkannya model pembelajaran Numbered Heads Together. Jenis penelitian ini merupakan deskriptif kuantitatif dengan desain penelitian One Group Pretest-Postest Design. Sasaran penelitian ini yaitu XI MIPA 2 SMA Negeri 11 Surabaya yang berjumlah 36 siswa. Hasil penelitian ini menunjukkan (1) Kualitas keterlaksanaan model pembelajaran NHT dalam kategori sangat baik dengan skor rata-rata berturut-turut yaitu 3,7; 3,8, dan 3,8, (2) Aktivitas siswa yang teramati diperoleh dari persentase aktivitas siswa yang relevan lebih besar dibandingkan persentase aktivitas siswa yang tidak relevan secara berturut-turut yaitu 91,67%, 95,56%, dan 96,67%, (3) Kuantitas bertanya siswa secara berurutan yaitu  30,56%, 61,11%, 69,44% dan kuantitas berpendapat siswa secara berurutan yaitu 61,11%, 72,22%, 83,33%. Kualitas bertanya siswa yang mendapatkan predikat baik sekali secara berturut-turut yaitu 19,44%, 25,00%, 30,56% dan kualitas berpendapat siswa yang mendapatkan predikat baik sekali secara berturut-turut yaitu 13,89%, 41,66%, dan 41,66%, (4) Ketuntasan hasil belajar siswa secara klasikal sebesar 94,44% telah mencapai nilai ketuntasan ≥75, N-gain score sebesar 91,67% mendapatkan kategori tinggi dan 8,33% dengan kategori sedang.

Kata kunci: Keterampilan komunikasi, Numbered Heads Together, Asam Basa

Abstract

This study aims to describe the implementation, student activities, communication skills of students, the cognitive learning outcomes of students during the implementation of the Numbered Heads Together learning model. This type of research is quantitative descriptive with One Group Pretest-Postest Design. The target of this study is XI MIPA 2 Surabaya 11 High School, amounting to 36 students. The results of this study indicate (1) The quality of implementation NHT learning model is very good category with successive average scores of 3.7; 3.8, and 3.8, (2) Student activities obtained from the percentage of relevant student activities greater than the percentage of student activities that are not relevant respectively 91.67%, 95.56%, and 96,67%, (3) The quantity of students question sequential is 30.56%, 61.11%, 69.44% and the quantity of students' opinions in sequential is 61.11%, 72.22%, 83.33%. The quality of questions students who received excellent predicates respectively were 19.44%, 25.00%, 30.56% and the quality of opinions of students who received excellent predicates respectively were 13.89%, 41.66% and 41.66%, (4) The completeness of student learning outcomes in a classic amounting 94.44% has reached the completeness value ≥75, N-gain score of 91.67% gets a high category and 8.33% with the medium category.

Keywords: Communication skills, Numbered Heads Together, Acid Base