Article Details

The study investigated the Effect of Graphic Advance Organizer on Senior Secondary School Students’ Achievement and Retention in Algebraic Processes in Abuja, Nigeria. The target population of the study comprised 2,443 Senior Secondary (SS) I Students in Abuja. The Sample of the study consists of 97 SS I students. Quasi-experimental design of pre-test and post-test, non-equivalent control Group was used. Two intact classes were used, one of which was randomly assigned to experimental and the other control group. Two research questions were answered and two hypotheses were tested. Algebraic Achievement Test (AAT) which comprised of 50 choice multiple question was face, logical and content validated using table of specification by three experts in Mathematics Education and in Measurement and Evaluation from Nasarawa State University,  Keffi, a logical validity index of the instrument was found to be 0.72 was used for data collection. The reliability coefficient of internal consistency (r) of 0.84 was obtained using Spearman’s Rank Order Correlation Coefficient. Mean and standard deviation were used to answer the research questions while the hypotheses were tested at 0.05 level of significance using Analysis of Covariance (ANCOVA). The results revealed that Graphic Advance Organizer Strategy enhanced achievement in Algebra and student taught algebra using graphic organizer retain better. The study recommended among others that with improvement of students’ achievement and retention on Graphic Advance Organizers strategy, practicing teachers of secondary schools mathematics should be sensitized by way of organizing seminars and workshops on the use of Graphic Advance Organizer strategy for onward application in the classroom instruction.