Abstract
The study compared Students’ academic Achievement when taught in classroom and on-line. The design for the study is quasi-experimental design. The population for the study was 77, 458 SSI students in Delta State in 2019/2020 academic session. 180 students in six intact classes from six secondary schools were drawn as the sample. The three senatorial districts of the state were represented. The students were taught four topics in Mathematics in classroom and four other topics online. Two sets of questions of 30 items each based on classroom and on-line teaching were set. Pre-testing was caried out before the teaching. At the end of teaching, post test was conducted to the students for the classroom and online topic question. Data were collected and analysed using mean standard deviation and t-test. The results showed that there was disparity in the overall academic achievement of students when taught in classroom and on-line. It also showed difference in academic achievement for male and female students for classroom and on-line teaching. The study also investigated academic achievement for urban and rural students under online teaching. But the results showed no significant difference. Hence it was concluded that location does not affect online teaching. Conclusions were drawn and recommendations made.