Balka, Don S. <br/><br/>
A guide to mathematics leadership :  sequencing instructional change / 
Don S. Balka, Ted H. Hull, Ruth Harbin Miles. 
 - Thousand Oaks, Calif :  Corwin,  c2010. 
 - 153 p. ; 26 cm. 
<br/><br/> Includes references and index. 
<br/><br/><label>ISBN: </label>978-1-4129-7543-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching.<br/>Educational leadership