http://www.helium.com/knowledge/243113-teaching-tips-step-by-step-guide-to-preparing-students-for-presentations.xml Helium.com > Education (Other) > Teaching tips: Step-by-step guide to preparing students for presentations en-us Copyright Helium.com Wed, 15 Jul 2009 19:51:20 GMT Wed, 15 Jul 2009 19:51:20 GMT