Nambeye, Tiwonge <br/><br/>
The influence of Jean Piaget's conservation tasks on the academic performance of pupils in the concrete operational stage of Kitwe district / 
Tiwonge Nambeye, 
 - Lusaka :   University of Zambia,  2020. 
 - xiii, 69  pages  illustrations. 
<br/><br/>Includes bibliographical references  
<br/><br/><label>Subjects--Personal Names: </label><br/>Piaget, Jean 1896-1980.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology.<br/>Education, Preschool.<br/>Cognition.<br/>Logic, Symbolic and mathematical.<br/>Genetic epistemology.<br/>Cognition in infants