[To Parent Directory] Wednesday, October 21, 2009 9:30 AM 246071388 MAT-150_Chapter_4_part_1.wmv Thursday, October 22, 2009 9:32 AM 259268668 MAT-150_Chapter_4_part_2.wmv Monday, October 26, 2009 9:10 AM 167703628 MAT-150_Chapter_4_part_3.wmv