Abstract
This study aims to improve science process skills of class X1 high school students in private school in Tasikmalaya regency through the application of problem based learning (PBL) based e-modules. Data on studnets’ process skills ability were obtained through quantitave data. The research design used was true experimental research with a pretest-posttest control group design. Quantitave data were obtainedd through the pretest and posttest which included tests of scientific processing skills (cognitive). The result of the effectiveness test illustrate that the e-module based on Problem Based Learning can improve students’ science process skils with a gain score for the control and treatment groups obtained tcount = 2,576 > ttabel = 2,002 at α = 0,05. Although the effective contribution of treatment to the treatment class was only approximately 10,6%, the effectiveness of this e-module is supported by presentasion of problem based material which is able to encourage students to learn.
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