IMPLICATION OF PROBLEM BASED INSTRUCTION (PBI) TOWARD STUDENT’S ABILITY IN SOLVING OF ENVIRONMENTAL POLLUTION PROBLEMS

The student’s Ability to solve problems in daily life is considered low. Though the problem of environmental pollution due to organic waste requires problem solving ability to critically and creatively. In the world of education, problem-solving skills can be taught to students through the model of Problem Based Instruction (PBI). This research purposed to determine the implication of Problem Based Instruction (PBI) model toward student’s ability in solving of environmental pollution problems. This research was a Pre Experimental Design using the One Group Pretest-Posttest Design. The research was done at SMA Negeri 1 Lamongan on January to July at class X with sample 7 regular classroom. Collected data of the student’s ability to solve problems using pretest and posttest methods of assessment with average reliability of the instrument was 0.78, as well as observatory method to observe the feasibility of student activities. The result of test data were analyzed using the technique of Spearman rank correlation with α=5% followed by calculating the determination coefficient, while the observations data were analyzed by descriptive quantitatively. The results of research showed that students’ ability to formulate the problem, determine the hypothesis and research variables was less than 20%, however there are positive implication and significant between implementation of PBI models for students’ ability in solving environmental pollution problems by 98,01%, with value of RS=0,99 (very high) and ZH (12.69) > Z table (0.96)