INSTRUCTIONAL APPROACHING MANAGEMENT THROUGH THE PROBLEM-BASED LEARNING MODEL FOR ENHANCING STUDENTS’ LEARNING ACHIEVEMENTS AND THEIR SOLVING-PROBLEM ABILITIES TOWARD SCIENCE OF LOWER SECONDARY EDUCATIONAL STUDENTS AT THE 9TH GRADE LEVEL

Abstract

The purposes of this research study were to develop solving-problems in science learning approach with the Problem-Based Learning (PBL) instructional lesson plans to enhance students’ learning achievements and their solving-problem abilities in science with the efficiency of the processing performances and the performance results (E₁/E₂) at the determining criteria as 80/80, students’ learning achievements of their post assessing test and the criteria learning outcomes at 80% with the PBL, and students’ solving-problem abilities and the criteria learning outcomes at 80% with the PBL toward science were compared, and to associate between  students’ learning achievements and their solving-problem abilities with the PBL was analyzed. Administrations with a sample size which consisted of 48 lower secondary educational students at the 9^th grade level from Wapi Phatum School under the Maha Sarakham Secondary Educational Service Area Office 26 with the purposive sampling random technique was selected. Using the 6-main instructional PBL method’s lesson plans to management of the activity-based learning conceptual approach in 12 hours, the 30-item Learning Achievement Assessing Test (LAAT), and the 20-item Solving-Problem Ability Measuring Test (SPAMT) were used. Statistically significant with the average mean scores, standard deviation, percentage, independent variable t-test were analyzed, simple and multiple correlations, standardized regression weight validity, and coefficient predictive value (R²) were associated. The results of these research findings have revealed as: students were evaluated to determine performance criteria with the efficiency of the E₁/E₂ results with the PBL method indicated that of 85.48/84.44, which was higher than standardized criteria of 80/80. Students’ learning achievements of their post assessing test and the scientific solving-problem learning ability outcomes at 80% with the PBL were differentiated that evidence at the 0.05 level, significantly. Students’ performances of their SPAMT and the criteria learning outcomes at 80% with the PBL toward science were also found of statistically significant that evidence of 0.01, differently. Associations between students’ learning outcomes of their LAAT and their SPAMT toward science, the R² value indicates that 67% of the variance in solving-problem abilities to their science class was attributable to their learning achievements of their Problem-Based Learning (PBL) instructional method toward science.

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