The Effectiveness Comparison of Scientific, Problem-Solving, and Open-Ended Approach of Discovery Learning Setting in Mathematics on Circle Material

The research was an experimental research which aimed to examine (1) The effectiveness of scientific approach of discovery learning setting in mathematics on circle material in class VIII at SMP Negeri 2 Sinjai Timur, (2) The efficiency of problem solving approach of discovery learning setting in math on circle material in class VIII at SMP Negeri 2 Sinjai Timur, (3) The efficacy of open ended approach of discovery learning setting in math on circle material in class VIII at SMP Negeri 2 Sinjai Timur, (4) whether scientific methodto discovery learning setting was more effective than problem-solving approach of discovery learning setting in mathematics on circle material in class VIII at SMP Negeri 2 Sinjai Timur, (5) whether the problem-solving approach of discovery learning setting was more effective than open ended approach of discovery learning setting in mathematics on circle material in class VIII at SMP Negeri 2 Sinjai Timur. The population of the research was all of the students in class VIII at SMP Negeri 2 SinjaiTimur. The samples of study consisted of three classes, namely experiment class I taught by scientific approach of discovery learning setting, experiment class II motivated by problem solving approach of discovery learning setting, and experiment class III taught by open-ended approach of discovery learning setting, taken by employing simple random sampling technique, the data collection consisted of the students learning achievement, the students activity in learning and the students response toward the device and the learning. The results of research showed that (1) the implementation of learning it scientifically, problem-solving, and open ended approach of discovery learning setting on circle material implemented well, (2) the implementation of learning it scientific, problem-solving, and open ended approach of discovery learning setting in mathematics on circle material in class VIII at SMP negeri 2 Sinjai Timur was effective based on the aspects (a) the students learning achieving, (b) the students learning activity, and (c) the students response. The result of hypothesis test in significant level = 0.05 with t-test showed that Scientific approach of discovery learning setting was more effective than Problem Solving and Open-Ended approach of discovery learning setting on circle material to class VIII students at SMP Negeri 2 SinjaiTimur.