Halima Shaukat <br/><br/>
Effect of numbered heads together strategy on achievements and retention of students at secondary level in chemistry  / 
Halima Shaukat 
 - Islamabad:  Allama Iqbal Open University,  2025. 
 - xxi, 179p. 
<br/><br/>MPhil Thesis 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Study and teaching (Secondary)<br/>Cooperative learning--Effectiveness<br/>Teaching strategies--Evaluation<br/>Dissertations, Academic--MPhil Science Education
<br/><br/><label>Dewey Class. No.: </label>540.71  / HAE