Dennis joined the IMSA 21st Century Information Fluency team in July, 2002.  He worked in public schools for 26 years.  During that time he taught grades 4 - 8, and served as a District Technology Coordinator, Language Arts Coordinator, Teacher Trainer, and computer industry technical writer.  In 1995, Dennis was recognized by the Milken Family Foundation as an outstanding National Educator for his work in technology integration with language arts and science.  While working as a project writer on for ISTE, Dennis was inspired to earn a specialized Master's Degree in Online Teaching and Learning.  He recently completed a second Master's Degree in Instructional Design.

During the past 7 years he has taught over 50 different online courses for K-16 educators from all around the world. He has designed and teaches online classes in E-Learning, Technology Integration, Multicultural Education, and Writing Assessment for the University of Wisconsin-Stout.  Dennis is also the program advisor for the new graduate certificate in E-Learning and Online Teaching program at the University of Wisconsin-Stout.