EFFECTS OF PROBLEM SOLVING METHOD WITH POWER POINT ON ACHIEVEMENT OF SECONDARY SCHOOL PHYSICS STUDENTS IN REFRACTION OF LIGHT WAVES

Abstract
This study was designed to determine the effect of problem solving method with PowerPoint on SS II physics students’
academic achievement in refraction of light waves in Ilorin Kwara State. Two Research questions were raised and two Null
hypotheses were tested. The study adopted a pre-test and posttest control and experimental group design. The
representatives sample size for the study comprises of one hundred and twelve (112) Physics students selected using
purposive sampling techniques from three (3) senior secondary schools in Ilorin, Kwara State. The Researcher taught the
experimental group Refraction of light waves using problem solving method with power point, while the control group was
exposed to problem solving method using traditional approach. The instrument for data collection was 50-items multiple´┐żchoice tagged Achievement Test on Refraction of Light Waves (ATRLW) reflecting the content in the lesson note. A
reliability coefficient of 0.785 was obtained using Pearson’s moment correlation coefficient(r). The data was analyzed
statistically using independent sample t-test and the statistical results accepted the null hypothesis of the study. The study
revealed that using problem solving method with power point and problem solving method with traditional approach both
enhances SS II physics student academic achievement in refraction of light waves, also there was no discrimination of the
academic achievement of male and female students when taught with problem solving method using power point. The use of
problem solving method with power point has an essential effect on male and female students. The study also revealed that
problem solving method generally enhances students’ ability in solving problem in physics. It was concluded that problem
solving-ability in students is a critical variable of students’ academic achievement in refraction of light waves.