Karen Perkins is a teacher at Palisades Charter High School in Los Angeles.
By Karen PerkinsDec. 19, 2014
Dec. 18, 2014
Table of Contents
© 2017 American Association for the Advancement of Science. All rights Reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER.