This study investigated the comparative effect of
cooperative variants of STAD/TGT and individualistic goal
structure on the mathematics achievement of 80 junior
secondary school Nigerian students. The study adopted a pretest,
post-test control group quasi-experimental design and data
collected for the study were analysed using the t-test statistic.
The results showed that significant difference existed in the
mathematics achievement of cooperative and individualistic goal
structure groups in favour of cooperative group. The cooperative
strategy also enhanced students’ mastery of mathematics content
at both the comprehension and application levels than at the
knowledge level of cognition. Based on the findings, the study
recommended among others that STAD/TGT as variants of
cooperative learning should be used by teachers to complement
the teaching of mathematics at the secondary school level.