EFFORTS TO INCREASE THE STUDENTS' LEVEL OF CONFIDENCE IN MATHEMATICS LEARNING USING NUMBERED HEAD TOGETHER (NHT) COOPERATIVE LEARNING MODEL TOGETHER

Abstract

This study aims to improve the students’ confidence through the Numbered Head Together (NHT) learning model in learning mathematics in class VIII D of SMP N 3 Depok. This is a classroom action research (CAR) using the cooperative learning model type Numbered Head Together (NHT). The stages in this study are adopted from the Kemmis & McTaggart and Jhon Elliot models which consist of four steps: planning, action, observation, and reflection. The research subjects include 32 students. The data collection techniques in this research are test, questionnaire and observation. The data collection instruments used are written test in the form of multiple choice to measure the students’ cognitive learning outcomes, self-confidence questionnaire, and observation sheets to determine the feasibility of learning using NHT technique. The data analysis technique in this research uses percentages for the learning outcomes using observation sheets, data analysis of descriptive study completeness describing individual and group students’ outcomes, and scoring for self-confidence questionnaire using Likert scale with five criteria intervals. The results of the analysis of this research indicate that in mathematics learning increases student confidence by 10.22%. The students’ outcomes (cognitive) have decreased, and one of them is the learning material that is more difficult than the cycle I. The basic competence for cycle I is to complete SPLDV while for cycle II, the basic competence is to make and complete mathematical models of problems related to SPLDV. The implementation of learning using the NHT learning model has increased from 81.3% in the first cycle to 96.9% in the second one. It can be concluded that the NHT cooperative learning model is proven to improve the students’ confidence.