Paper Title
The Study of Calculus I Achievement for Mathematics Pre-service Student Teachers at Suan Sunandha Rajabhat University by Problem-based Learning

The purpose of this research was to examinethe students’ Calculus I achievementby Problem-based Learning. This study is an action research which consisted 15 of first-year mathematicsPre-sevice student teachers who enrolled in the first semester of2016 from Sunandha Rajabhat University. The participants for this study were classified as students having problems to do the limit and continuity in the subject of Calculus I.The result shown that the students’ achievement was above the criteria of 50%. Index Terms - CalculusI,Problem-based Learning.