Penggunaan Model Problem Based Learning dengan Multirepresentasi pada USAha dan Energi di SMA

The purpose of this research is to know the effectiveness of implementation problem based learning model with multiple representations in reduce the percentage of students difficulty in XI IPA SMAN 1 Pontianak. The research design is one group pretest-posttest design, and the instrument uses essay test . Test reliability (0, 5) is classified as medium and test validity (3,56) is classified as medium. The effect size of this research (2,18) is classified high but the reduction percentage of the students difficulty (41,33%) is classified as medium. The percentage increase of the students skill in multirepresentation (52,38%) is classified as medium. The research doesnt find significant correlation between the posttest result of students difficulty and the posttest result of students skill in multirepresentation (C = 0,935, p = 0.348). The research result is suggested in the development of implementation problem based learning model with multiple representations approach