Wathall, Jennifer. <br/><br/>
Concept-based mathematics :  teaching for deep understanding in secondary classrooms / 
foreword by H. Lynn Erickson. 
 - Thousand Oaks, California :  Corwin,  2016. 
 - xxv, 268 p. ; 26 cm 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781506314945 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching--Psychological aspects<br/>Mathematics--Study and teaching (Middle school)<br/>Mathematics--Study and teaching (Secondary)