The implementation of authentic assessment through project-based learning to improve students problem solving ability and concept mastery of environmental pollution topic M Andanawarih1, S Diana2, and A Amprasto2
1Program Studi Magister Pendidikan Biologi, SPs. Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
2Departemen Pendidikan Biologi, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Abstract
Abstract. This study aims to obtain the information about improving of students problem solving ability and concept mastery after the implementation of authentic assessment through project-based learning of environmental pollution topic. The subject of the study were 10th grade students consist of 40 students in a senior high school in Bandung. The research method was weak experiment with the one-group pretest-posttest design. The instruments used for this research are the test of problem solving ability and concept mastery, completed with observation sheet, questionnaire as students responses, product assessment and students worksheet. Students problem solving ability was measured by pretest and posttest questions referred to the problem solving aspect of Marzano while concept mastery was measured by pretets and posttest referred to Revised Blooms Taxonomy. Data were analyzed using quantitative way with N-Gain value. Students problem solving ability showed the point of N-Gain 0,72 while the concept mastery N-Gain 0,70. The results of the study shows that the implementation of authentic assessment through project-based learning can improve students problem solving ability and concept mastery with high category.
Keywords: Authentic Assessment, Project-Based Learning, Problem Solving Ability,Concept Mastery
