[To Parent Directory] 1/23/2015 10:43 AM 546305 01_Lecture.pdf 1/15/2015 12:53 PM 6243840 01_Lecture.ppt 8/24/2010 12:23 PM 266213 Sig figs and sci notation.pdf 8/24/2010 12:16 PM 652288 Sig figs and sci notation.ppt