Techniques of using Trigger on the MS PowerPoint 2003 in designing Games to teach effectively Grade 11 English lessons Methodology “Techniques of using Trigger on the MS PowerPoint 2003 in designing Games to teach effectively Grade 11 English lessons” Lª §×nh X« The Teacher of English at Le Viet Tao High School Page1 ACKNOWLEDGEMENTS First of all, I would like to express my heartfelt thanks to all the leaders of Thanh Hoa Education and Training Department for organizing this seminar and for givi[.]