PENGARUH NHT TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA VIII MTs KHULAFAURRASYIDIN PADA ZAT ADITIF DAN ADIKTIF

Abstract

Abstract

The main goals of this study were 1) to determine whether there was a significant difference between achievements of students taught using NHT and conventional model, 2) to determine effect size of NHT model on studenst"™s achievement on additive and addictive substance material class VIII MTs Khulafaur Rasyidin. Quasi experimental was used as a form of research with design "nonequivalent control group". The sample was students of VIII D as experiment class and VIII C as control class. The essay test, interview and closed observation sheet was used as instrument of this research to collecting data. According to U-mann Whitney test using SPSS 16, the value of asymp.sig (2-tailed) was 0,02 (0,02<0,05).Therefore, there was a significant difference of student achievement was taught by using cooperative model NHT"™s type (numbered head together) with student achievement was taught by using conventional learning to the material additive and adictive substance and getting score asymp.sig (2-tailed) was 0,002 (0,002<0,05) on score test of students"™ activity in first meeting and 0,003 (0,003<0,05) on score test of students"™ activity in second meeting. Therefore, there was a different of students"™ activity in those classes. Effect size was 0,72 which categorical as moderate criteria.

Keywords: cooperative model numbered head together, the result of study, activity, additive and adictive substance.