Effect of model-based inquiry instructional technique on skill acquisition of pre-service integrated science teachers in Delta State

Abstract

This study sought to determine the effect of a model-based inquiry instructional technique on critical thinking skill acquisition of pre-service integrated science teachers. Two research questions and three hypotheses that were tested at 0.05 level of significance guided the study. Quasi- experimental design was used for the study because intact classes were used. The population of the study consisted of all the pre-service integrated science teachers in Nigeria Certificate in Education (NCE) in the only Federal College of Education and the two State Colleges of Education in Delta State numbering forty-three (43). The sample of the study consisted of thirty-eight (38) pre-service integrated science teachers in the only Federal College of Education and one of the State Colleges of Education which was selected using purposive sampling technique in order to train more pre-service teachers. The two Colleges of Education (one Federal and one State) were randomly assigned to 5E’s model based inquiry instructional technique and demonstration method of instruction using toss of coin. The study was necessitated due to the need to equip pre-service integrated science teachers with appropriate skills as specified in the new minimum standard. Hence, it became necessary to expose the male and female pre-service integrated science teachers toa model-based inquiry instructional technique in order to equip them for the task ahead. The Test of Critical Thinking (TOCT) developed by the researchers and found to be valid and reliable were used for data collection. The groups received pre-test and post-test independently. The research questions were answered using mean and standard deviation while Analysis of Covariance (ANCOVA) was used to test the hypotheses. The findings revealed that 5E’s model -based inquiry was more efficacious than the demonstration method of instruction in bringing about pre- service integrated science teachers’ critical thinking skill acquisition required for the 21^st century amongst others. Based on the findings it was recommended amongst others that the National Commission for Colleges of Education (NCCE) should incorporate 5E’s model -based inquiry instructional strategy in the Nigeria Certificate of Education (NCE) minimum standard.