The study investigated the effects of 4As and 5Es instructional models on senior secondary II students’ interest in chemical equilibrium in Benue State. Two research questions guided the study, while two hypotheses were formulated and tested. The study adopted quasi-experimental, non-randomized control group pretest and posttest design. The population of the study comprised 8,864 SSII Chemistry students. Samples of 194 SSII students from six Government grant aided secondary schools in Benue Education Zone C were selected using multistage sampling techniques. Instrument for the study was Chemical Equilibrium Students’ Interest Rating Questionnaire (CESIRQ) with reliability coefficient of 0.70. Analysis using mean, standard deviation and mean gain scores were used to answer the research questions while Analysis of Covariance (ANCOVA) was used to test the hypotheses at 0.05 level of significance. The findings of the study revealed that there was a significant difference in the mean interest rating of students taught chemical equilibrium using 4As, 5Es instructional models and modified lecture method [ F 2,193 = 89.995; P = 0.000< 0.05]. There is no significant difference in the mean interest rating of male and female students taught chemical equilibrium using 4As instructional model [ F 1,62 = 2.339; P = 0131< 0.05]. There is no significant difference in the mean interest rating of male and female students taught chemical equilibrium using 4As instructional model [ F 1,63 = 3.173; P = 0.080< 0.05].There is no significant interaction effects between instructional models and gender on students interest [F2, 193 = .262; P = .769 > 0.05] when taught chemical equilibrium concepts. The study concludes that 5Es and 4As instructional models have greater effects on students’ academic interest in Chemical Equilibrium than Modified Lecture Method on SS II students in Benue Education Zone C. Based on the findings, it was recommended among others that Ministry of Education through Chemistry teachers should emphases the use of 5Es and 4As instructional models in teaching to enhance the academic interest of students in Chemistry.
Keywords: 4As, 5Es, Instructional Models, Students’ Academic Interest and Chemical Equilibrium.
