Published Article

The persistent poor academic achievement of students in the sciences in recent times raises doubts on the efficacy of the teaching methods used by the teachers. Teachers and students perceive the concept of environmental pollution and environmental hazards as being difficult. It is in view of this environmental pollution when taught using Computer-Assisted Instruction and Think-Pair-Share instructional strategies in secondary schools in Itu Local Government Area, Akwa Ibom State. A quasi-experimental design with 2 x2 factorial arrangement was adopted for the study. The study population comprised all the 1000 Senior Secondary Two (SS 2) Chemistry students in all the 19 public co-educational secondary schools in Itu Local Government Area during the 2024/2025 school year. The sample consisted of 141 (SS2) Chemistry students drawn from four intact classes in four-selected co-educational secondary school in the study area using purposive sampling technique. The instrument for data collection was a researcher-developed 25 item, 4-option, multiple-choice test, tagged: Achievement Test on Environmental Pollution (ATEP) with a reliability index of 0.75 The data obtained from the pre-test, post-test and retention tests were analysed using mean, standard deviation and Analysis of Covariance (ANCOVA). The results environmental pollution, when taught using Computer-Assisted Instruction and Think-Pair-Share instructional strategies, respectively, in favour of students taught using Computer-Assisted-Instruction; environmental pollution, when taught using Computer-Assisted Instruction and Think-Pair-Share instructional strategies in favour of those taught using Think-Pair-Share Method; that there was no significant difference between the mean achievement and retention scores of male and female students in the concepts taught given the instructional strategies. Consequently, it was concluded that Instructional strategies gender; and it was recommended, among others that Chemistry teachers should make effective use of Computer-Assisted-Instruction and Think-Pair-Share teaching methods for better learning outcomes.

Keyword: Relative, Effects, Computer Assisted Instructions (Cai), Think-Pair-Share Teaching Method Chemistry Student, Academic Achievement, Retention, And Environmental Pollution.