Juli Antasari Sinaga
International Journal of Chemistry, Mathematics And Physics(IJCMP), Vol-4,Issue-1, January - February 2020, Pages 4-8 , 10.22161/ijcmp.4.1.2
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The aim of the study is to find out the ability to understand mathematical concepts of teachers prospective in Mathematics Education Program FKIP University Nommensen in the fractional count operations material. This research is a descriptive study with the aim of the study describing the effectiveness of the Problem Based Learning Model. The results of the second trial described that the effectiveness of the Problem Based Learning Model was concluded: (i) the percentage of the students who understood the concept at least 85.29% or 29 students out of 34 students who took the test. (ii) the achievement of the ideal percentage of time for each category of student activity, (iii) the average of the lecturer ability to manage learning is 3.54, including the good category, (iv) student responses to the components and learning activities are positive is 90%.