David Yaffie is the principal of Clements High School, which opened in the fall of 1983. Yaffie has proudly served all 37 years of his education career in Fort Bend ISD. He taught science and history at Quail Valley Middle School for 10 years, and also served as the Science Department Head for three years. He was named the Quail Valley Middle School Teacher of the Year in 1993. He became an assistant principal at Clements High School in 1995, and served as the associate principal of Clements High School from 2001 until the fall of 2005 when he was selected as the founding principal of Baines Middle School where he served until returning to Clements in 2013.
Mr. Yaffie earned a Master of Education degree in Education Administration and a Bachelor of Arts degree in Biology from The University of Texas at Austin. While completing his Master's degree, David was listed in Who's Who among America's Teachers and earned membership in the Phi Kappa Phi Academic Honor Society. He completed the Summer Leadership Institute at the Harvard University Principal’s Center in 2013.
Mr. Yaffie has been a presenter at numerous conferences and workshops including those sponsored by the Texas Association of Secondary School Principals, the Texas Association of Supervision and Curriculum Development, the Fort Bend ISD’s Educational Technology Department, and the Textbook Coordinators Association of Texas. His presentations have covered topics such as: "Basics of NOVA Training,” “Effective Classroom Management,” "Nuts and Bolts of Textbook Management," “Instructional Leadership for Net Generation Schools,” “Effective Staff Development,” and “Creating a Modern Teaching Culture.”
He has served on the Region VIII Academic Decathlon Steering Committee, FBISD's Task Force on Reconnecting At-Risk Youth, served as Coordinator of FBISD Academic Pentathlon Meet, and has been a member of numerous district committees and is the current chairman of the FBISD Technology Steering Committee.
David Yaffie was named Administrator of the Year by the National Business Education Alliance in 2007. This award was in recognition of the outstanding use of instructional technology by the students and teachers at Baines Middle School. Mr. Yaffie was named as FBISD’s Secondary Principal of the Year in 2012 (at Baines) and in 2020 (at Clements).