Devoting to enhance the critical thinking skill and the creativity of students in seventh grade through PBL model with JAS approachment

This research aims to improve the critical thinking skill and the creativity of students in viic class in smp 2 kudus in academic year 2013/2014 by implementing problem-based learning (pbl) with jelajah alam sekitar (jas) approach. the learning design used is the classroom action research which conducted in 2 cycles. the first cycle applies pbl with jas approach which the students conduct direct exploration to the environment and in the second cycle students conduct direct and indirect exploration. the results show that the pbl model with jas approach is able to improve the students’ critical thinking skills amounted to 74. 35% and enhance students’ creativity amounted to 66.96%. it can be concluded that the pbl model with jas approach is effective to improve the critical thinking skill and the creativity of students. © 2015 science education study program fmipa unnes semarang.