Bilbao, Purita P. <br/><br/>
Teaching science in the elementary grades :  volume 1: chemistry and biology / 
Purita P. Bilbao, Shirley R. Jusayan, Lourdes N. Morano, Lea C. Tingson. 
 - Quezon City, Philippines :  Lorimar Publishing,  2019. 
 - xxiv, 226 p :  illustrations ;  25 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>978-621-8035-64-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Study and teaching (Elementary).<br/>Chemistry--Study and teaching (Elementary).<br/>Science--Study and teaching (Elementary).