This study aims to improve the ability to ask questions and problem solving skills of learners in the learning of physics through Problem Based Learning. This research is a classroom action research with two cycles in learning using problem based learning. Data collection techniques used to determine the ability to ask is by observation while for problem-solving skills using the test. Subjects in this study were students of Senior High School X class at St. Seminary Rafael Oepoi Kupang Academic Year 2017/2018. The results showed that: (1) there was an increase in the ability to ask learners in the second cycle; (2) there is an increase of mean value of problem solving ability of learners gradually that is from 68 at initial test, 72 at cycle I and 77 in cycle II. Keywords— Questioning skills, Problem Solving skill, PBL
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