Project- based learning and problem- based learning: Are they effective to improve student’s thinking skills?

The study aims at finding (1) the effect of project-based learning and problem-based learning on student’s creativity and critical thinking and (2) the difference effect of project-based learning and problem-based learning on student’s creativity and critical thinking. this study is quasi experiment using non-equivalent control-group design. research population of this study was all classes in eleventh grade of mathematics and natural science program of sma n 1 temanggung. the participants were 102 students. this study used three classes as research sample which implemented three different kinds of learning models in respiratory system. xi mipa 3 was as an experimental group implementing project- based learning and xi mipa 5 was as an experimental group implementing problem- based learning,while xi mipa 1 was as control group. data was collected using two instruments to measure student’s creativity and student’s critical thinking. data was analysed using t- test,multivariate analysis,and univariate analysis. the results reveal that (1) project-based learning and problem-based learning affect student’s creativity and critical thinking; (2) there is a difference effect of project-based learning and problem- based learning on student’s creativity; and (3) there is no difference effect of project-based learning and problem-based learning on student’s critical thinking. © 2017 science education study program fmipa unnes semarang.