Influence of Class Size on the Teaching and Learning of Biology in Senior Secondary Schools in Mubi-north Local Government Area, Adamawa State

This study investigated the influence of class size on the teaching and learning of biology in Public Senior Secondary Schools in Mubi-North Local Government Area of Adamawa state. The population of the study comprised of all the senior secondary schools Biology students in Mubi-North Local Government Area. A sample of 100 students was involved in the study, 35 for small class and 65 for large class drawn from Senior Secondary Two (SS II) students. Random sample technique was used to select two intact classes. The research design was quasi-experimental. The instrument used for data collection was Biology Achievement Test (BAT). Mean and standard deviations were used to answer research questions. Analysis of Variance (ANOVA) was used for hypotheses testing at 0.05 level of significance using the Statistical Package for Social Science (SPSS). The findings showed that there is no significant difference between mean scores of students’ achievement in small class size and large class size on teaching and learning of biology in senior secondary schools. The results also show that male students had higher mean score gain than their female counterparts. It was recommended that teachers should present their lesson using teaching aids in large class.