EFFECT OF DIGESTIVE SYSTEM MODEL AS AN INSTRUCTIONAL MATERIAL ON THE PERFORMANCE OF SECONDARY SCHOOL STUDENTS ON THE CONCEPT OF DIGESTIVE SYSTEM (A CASE STUDY OF MINNA METROPOLIS  

2014-05-05
The project is a research wor·k which attempt to compare the performance bf students in biology when taught the concept of digestive system using Digestive System Model (D.S.M.) and lecture ...