PENINGKATAN AKTIVITAS DAN HASIL BELAJAR MATA PELAJARAN BIOLOGI MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEADS TOGETHER (NHT)

Abstract

Efforts to improve biological activity and learning outcomes, need to do Classroom Action Research (CAR) by applying a type of learning model Numbered Heads Together (NHT) in KD. 1.1, 1.2, and 1.3. Research subjects were students class XI IPA-1 SMA 20 Palembang which consists of 36 people. The procedure adopted consisted of 3 cycles, consisting of a cycle I as much as 2 meetings, cycle meetings 3 times II, and III cycle 3 times the meeting. Based on observations of student activity levels, cycles I to III has reached the category of moderately active and very active. Post-test values are achieved by students at each end of both meetings each cycle. Before the action, the value of daily tests 1,2, and 3 only reached 54.8 exhaustiveness classical. After the measures showed an increase in a row from the cycle I: 80.47 cycles II: 83.88, and the cycle III: 85.44. Before the KKM measures the percentage of daily tests are: 49.33%. After the action the percentage of students who achieve KKM (scores ≥ 72) increases, cycle I: 88%, cycle II: 100%, and cycle III is also 100%. Observations indicate that the activity of students in the group, tasks, think together, and answer the post test questions. The results of class XI student learning IPA-1 SMA Negeri 20 Palembang increased and implemented in response to learning good or positive.