Parallel curriculum units for science, grades 6-12 / 
Jann H. Leppien, Jeanne H. Purcell, editors. 
 - Thosand Oaks, California :  Corwin,  c2011. 
 - 229 p. ; 28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (middle school).<br/>Science--Study and teaching (secondary).