DEVELOPMENT OF PHYSICS PROBLEM-SOLVING ABILITY AND LEARNING ACHIEVEMENT ON MECHANICAL WAVES FOR GRADE 11 STUDENTS USING 7E LEARNING CYCLE WITH STAR STRATEGY

Abstract

The objectives of this research were 1) to study the ability to solve physics problems on mechanical waves of Grade 11 students who received learning management using the 7-step learning cycle combined with the STAR strategy, and 2) compare the academic achievement on mechanical waves after learning with the 70 percent criterion. The sample consisted of 40 Grade 11 students from Sarakhampittayakhom School in the first semester of the 2024 academic year, selected by cluster sampling. The research instruments included: 1) 9 lesson plans based on the 7-step learning cycle combined with the STAR strategy on the topic of mechanical waves, with a total of 13 hours of instruction; 2) a 6-item subjective test to measure the ability to solve physics problems; and 3) a 25-item with 4-choice academic achievement test. The statistics used for data analysis were mean, standard deviation, and hypothesis testing using a one-sample t-test.

           The research results revealed that 1) students had higher ability in solving physics problems on mechanical waves in each aspect and overall, and 2) students had academic achievement on mechanical waves higher than the 70 percent criterion with statistical significance at the .05 level.