The study investigated the effect of Advance Organizer (AO’s) on secondary school students performance and retention in English Language comprehension using a quasi- experimental design of the pretest, posttest control type. A total of 90 SSII students were purposively sampled from three public secondary schools in Rivers State. From a population of 3200. The experimental group consisted of 30 students each while the control group had 30 students. A teacher-made Graphics and Pictorial Advance Organizers .were used to intervene on student’s pre-test performance and the conventional Lecture approach of the control group. Students ’ performance and post-delayed test were based on the West African Examination council (WAEC, 1998)Comprehension question. Descriptive statistics of mean was used to answer the research questions while the inferential statistics of t-test and analysis of significance level, there is a significant difference in performance between students taught using the Graphics Advance organizer (GA0) and pictorial Advance Organizer (PAO) and those taught using conventional Lecture Method. Furthermore, there is a significant difference between the retention of students reading comprehension, taught using the advance organizers. However, the pictorial advance organizer showed greater potency in facilitating reading comprehension among the students. It is therefore recommended that Pictorial Advance Organizers (PAO) b e used in teaching reading comprehension, in order to improve students’ performance and retention in English language comprehension

Keywords : Advance Organizers, Graphics, Pictorial, Performance, Retention Comprehension.