This study investigated the influence of teachers’ qualifications and experience on students’ academic performance in basic science in junior secondary schools in Nigeria. The study was a descriptive survey type of research. Simple random sampling was used to select eight Junior Secondary Schools (J.S.S.) in the Ogun East senatorial district of Ogun State. It included 18basic science teachers and 540 junior secondary school students. The data were collected using a questionnaire and a basic science achievement test. The data collected were analyzed using descriptive statistics, one-way analysis of variance and Pearson Product-Moment Correlation. The findings of this study revealed that most of the basic science teachers at the J.S.S. level were not trained as basic science teachers; science teachers’ qualifications influenced students’ academic performance in basic science; basic science teachers’ years of teaching experience did not have a positive correlation with students’ academic performance in basic science. Keywords: Qualification, academic performance, problem-solving

This study investigated the impact of laboratory-based instructional intervention on the learning outcomes of low performing senior secondary students in Physics. The study adopted the pre-test and post-test control group quasi-experimental design. The treatments were at two levels (LBII and CTM). A total number of 194 SSS II students participated in the study. Physics Achievement Test (PAT) was the main instrument used to collect data from students. The data collected were analyzed using descriptive statistics and t-test, using SPSS 15.00 statistical packages at 0.05 level of significance. The results of this study indicated that there was significant difference in the achievement in Physics of low performing students exposed to laboratory-based instructional intervention (LBII) and those exposed to conventional teaching method (CTM). This study concludes that the use of laboratory based instructional intervention method of teaching should be embraced as a good asset to Physics Students and teachers in the senior secondary schools.

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