Comparative Effectiveness of Video Media Instruction and Laboratory Teaching Technique in Learning Practical Chemistry in Nigeria Senior Secondary Schools

Abstract

This study examined the relative effectiveness of Video Media Instruction (VMI) and Conventional Laboratory
Technique (CLT) on the teaching of Volumetric Analysis an aspect of practical Chemistry. A pre-test, post-test control group
design was used for the study. A sample of ninety students was randomly selected out of one thousand two hundred SSS II
Chemistry students in Osun State and divided into three groups. The 1st group was taught with Video Media Instruction (VMI),
the 2nd group was taught with the Conventional Laboratory Technique (CLT), while the 3rd group combined the two methods. A
pre-test was administered before treatment and after six weeks of instruction, a post-test was similarly administered. The data
obtained were analyzed using t-test and F-statistic. The results showed that there was a significant difference in the performance
of students taught with CLT and those taught and those taught with VMI. Also a significant difference existed in the mean
achievement scores of students that were exposed to VMI coupled with CLT and those exposed to CLT alone. There was also a
significant difference in the performance of students when CLT, VMI and VMI/CLT groups were compared. It was therefore
concluded that VMI/CLT was more effective in teaching Volumetric Analysis and that augmenting CLT with VMI allow students
learn better.