Placer County - Organizing Committee
David Chiappone - Committee Chair

David is a software quality  assurance professional focused on enabling teams to succeed in software development environments. When not working directly with development teams, he is passionate about leveraging his knowledge and skills to enable STEM learning.

Dr. Bob Lyons - Exhibitor Coordinator

Bob is the Director of Technology for the Nevada Union High School District. His 20+ years of global educational technology leadership has focused on promoting the value of technology for teaching and learning for the next generation of technology users in Poland, Roseville, Indonesia, Idaho, and Montana. Bob joined the STEM Expo Executive Board during our third year.

Starla Torres - Event Coordinator

Starla is retired from a long career at AT&T, where she held a variety of positions; from telephone installation to data records center repairs, quality control testing for large main frame computer systems and integrating new phone systems. She is now enjoying her retirement in the Auburn area and volunteering with STEM Expo. 

Ken Silverman - Event Development

Ken worked for over 30 years as President/CEO of a Silicon Valley Computer Corporation. When the Apple II appeared he helped start the first user group - the San Francisco Apple Core - and was International Apple Core's first President. After retiring, Ken decided to become an Apple Consultant - helping fellow Apple enthusiasts with training, tutoring, and support.

STEM Expo, Inc. - Board of Directors

Dr. Eric Bull - Executive Director

After 23  splendid years teaching K-8 students, Eric opted to train the next generation of teachers.  Earning a doctorate in science education, he taught science methods at CSU Sacramento before joining the staff of William Jessup University as Coordinator of Education Department Undergraduates. While there, Eric created the concept and organized the very first STEM Expo event in 2011. Eric now lives and works as an educator in Monterey County.

Alan LeVezu - Judging/Competition Director

Alan is the Vice President of Engineering for IDAC West and owns several patents in automation technology. He has coached international award winning junior high and high school robotics teams, and is a recognized youth robotics judge and mentor. Alan has been involved with STEM Expo since it's first year, and currently resides in Southern California.

Heidi Buck - Event/Marketing Director

Heidi is a professional artist, published author and has worked in both the educational and marketing fields. She was voted Outstanding Volunteer for 2013/2014 Northern California FIRST LEGO League and has helped coach world level middle school and high school robotics teams. Heidi currently resides in San Diego North County.