David Marshall David M. Marshall is a Technology Education teacher at West Irondequoit Central School District; one of the first Project Lead The Way school districts in the US. Mr. Marshall teaches the PLTW middle school Gateway To Technology program and the folloing PLTW high school Pathway To Engineering classes: IED/DDP, DE, and POE. He has served as a POE Master Teacher since 1996, has authored several POE end-of-course exams, and has written curriculum materials for the POE, DE, and CIM courses. Mr. Marshall has a Bachelor of Science Degree in K-12 Technology Education and a Master of Science Degree in Education from the State University of New York College at Oswego. Read More Read Less