THE APPLICATION OF AUDIO VISUAL AIDS IN TEACHING OF BIOLOGY (THE CONCEPT OF RESPIRATION AND RESPIRATORY SYSTEM) A CASE STUDY OF SOME SELECTED SENIOR SECONDARY SCHOOLS IN CHANCHAGA LOCAL GOVERNMENT AREA OF NIGER STATE  

2015-09-09
The gradual decline in the standard of education is the this purpose of study. It is aimed at obtaining the 'in impact of audio-visual aids teaching of biology (the concept ...