A STUDY OF THE IMPACT OF INSTRUCTIONAL MATERIALS IN TEACHING AND LEARNING OF BIOLOGY IN-SOME SELECTED SECONDARY SCHOOLS IN MINNA (NIGER STATE) A CASE STUDY OF CHANCHAGA LOCAL GOVERNMENT AREA  

2015-03-03
The study aims at exammmg the effect of instructional materials on the teaching and learning of biology in some selected secondary school in Chanchaga local government area of Niger state. ...