The Effectiveness of Numbered Head Together with the Written Corrective Feedbacks on Mathematics Communication Skills Achievement

Abstract

---The purpose of this study was to analyze the effectiveness of the model Numbered Heads Together with Written Corrective Feedback on the achievement of mathematical communication skills. This study is experimental research. The quantitative research sampling technique is simple random sampling which in this study was taken experiment class used model Numbered Heads Together with Written Corrective Feedback and control class with discovery learning. The research data were analyzed with normality, homogeneity, completeness, and average difference test. The results showed that: 1) The mathematical communication skills of the experimental class students reached standard mastery. 2) The proportion of mathematical communication skills of students learning Numbered Heads Together with Written Corrective Feedback reached a classical completion of 75%. 3) The average results of mathematical communication skills of students who receive learning model Numbered Heads Together with Written Corrective Feedback higher than the average students who receive discovery learning.