Knowledge and attitudes to multicultural education concepts in Social Studies are invaluable experiences of analysing various cultures in today's interdependent world. It increases students' capacity for intellectual open-mindedness and global perspective about issues. Equity pedagogy exists when teachers modify their teaching strategies in ways that will facilitate the academic achievement of students from diverse racial and cultural groups. In an attempt to meet the demands of multicultural learners, instructional strategies must be centred on multicultural education concepts taking into account the historical, cultural, social and economic characteristics of Nigeria as a nation. The conventional method is the model for schools and according to research; it is not the most effective. Therefore, these call for the introduction of appropriate approaches of teaching Social Studies. A 30 item achievement test was administered on 126 junior secondary school students randomly selected from two secondary schools in the south-west region of Nigeria. Data were analysed using analysis of covariance. The findings of this study revealed that cooperative strategy proved more effective than the conventional strategy in the teaching and learning of multicultural concepts in Social Studies. The cooperative learning strategy should therefore, be used for teaching multicultural issues and concepts in Social Studies.