Published Article

ABSTRACT The study was designed to examine the effect of Graphic Advance Organizers on the academic performance and retention of physics concepts among secondary schools in Etinan Educational Zone. The study adopted pretest, post-test and post-post-test quasi-experimental design. The study was conducted using a total of Sixty (60) Senior Secondary II Physics Students. Purposive and random sampling was employed to select the schools. The topic: concept of wave motion was taught for four weeks using Graphic Advance Organizers and lecture method for Experimental group and lecture method only for the control group. The instrument used for pretest and post-test was physics performance Test (PPT) with reliability of 0.79 while that of postpost test was Physics Retention Test (PRT). Two null hypothesis were tested, t-test statistics was used to determine the level of significance of the two groups at p<0.05. The major finding of the study shows that there is a significant difference in the mean academic performance scores of the experimental and control groups. Also there is a significant difference in the retention level of students taught using Graphic Advance Organizers compared to those taught lecture method only. This study concluded that Graphic Advance Organizer enhances academic performance and aids in retention of physics concepts. It was recommended that physics teachers should be encouraged to adopt Graphic Advance Organizers in conjunction with appropriate teaching methods in teaching physics concepts in our secondary school. KEYWORDS: Graphic Advance Organizer, Academic performance, Retention, Physics concept,