Tim Stewart, Educational Partnerships Consultant

Tim has worked with Greenfield Learning for many years, covering a vast swath of Northern California, including rural, scenic, and urban areas. Prior to joining Greenfield, Tim worked with several publishing companies as a sales representative. Tim’s father-in-law, a veteran in the sales field, helped him discover his passion for helping promote student learning, equity, achievement, and community serving as an educational partnerships consultant. Tim graduated from the University of California Davis with a degree in History.

Tim comes from a 4th generation California farming family with strong roots in California education – he had 7 great aunts who graduated from San Jose State University, all went into teaching and administrating, plus other family members who work in education. Tim is a devoted family man, with 4 sons, 1 daughter, and a wife. Tim enjoys parenting, gardening, cooking, sports, fishing, keeping an attitude of gratitude, reading, learning, meditating, and power walking.

Tim can be reached at tim@greenfieldlearning.com.

Shawn Kiehn, Sr. Educational Partnerships Consultant

Shawn is “Wyomingite” at heart, and that is where he started teaching and coaching, after graduating from the University of Wyoming with his multiple-subject teaching credential and B.A. in Spanish. He taught in Wyoming for 2 years, then for 12 years in Visalia, California, where he currently resides. After spending 14 years teaching, he started working with educational technology, joining the Greenfield Learning team, where he has been for over 20 years! He has a passion for helping students and staff succeed in all their educational endeavors.

Born in Colorado and raised in Colorado and Wyoming, he is a true Rocky Mountain boy, but he has an international flavor with a beautiful wife and daughter from Cali, Colombia! He has backpacked the continental divide and, together, they have been to Costa Rica, Colombia, Italy and France, and traveled much of the U.S., and simply love to travel and visit new places. He enjoys singing, going to movies, reading, and spending time with his family, as well keeping up with his “customers,” many of whom he considers as colleagues and friends! As they say in Costa Rica – “Pura Vida!”

Shawn can be reached at shawn@greenfieldlearning.com.

Lee Ann Sheridan, Educational Partnerships Manager

Since joining Greenfield Learning, Lee Ann has enjoyed collaborating with districts and schools in Southern California and Canada.  She was born and raised in California but spent every summer of her childhood in the New York City area with all her extended family that still lives there.  She received her Bachelor of Arts in Business Communication from Chapman University.

Lee Ann is married with a young son that she loves laughing with. As a family they are always traveling, playing sports and going on their boat.  Her mission in life is to teach her son kindness and empathy and to cheer for the New York Yankees and Notre Dame Football. 

Lee Ann can be reached at leeann@greenfieldlearning.com.

Rebecca Bittner, Sr. Director Of Educational Technology

Rebecca began her teaching career around the corner from her childhood home in Los Angeles. With a deep and personal passion for education, she's worked as a classroom teacher, an instructional designer, and a district personalized learning manager. When she's not teaching, she can be found learning. Rebecca earned her BA in Literature from the College of Creative Studies at UCSB and completed her Single Subject Teaching Credential program in English at California State University Long Beach. She earned her MA in Social Entrepreneurship from Goldsmiths College, University of London, completing her thesis on the impact of commoning on innovation within schools.

She is eternally curious about technology and helping others leverage it to lighten their load.  She is also deeply and compassionately committed to doing "the work" so she can show up in service to others. On the weekends, you'll find her staying active with her toddler and Huskies.

You can connect with her at rebecca@greenfieldlearning.com.

Gillian Baldocchi, Educational Partnerships Manager

Gillian joined Greenfield Learning in 2019 after working as an elementary teacher and instructional coach for 18 years. She started her teaching career working with special needs students in London, England before getting hired in LAUSD. She graduated from Pepperdine University with an MA in Education and a California Teaching Credential. In 2018, she earned an MS in Educational Leadership and a California Administrative Credential.  

During her time in the classroom, Gillian loved watching the excitement on her students’ faces as they learned something new and strived to make her classroom a safe and engaging place for her students. As an Instructional Coach, she worked closely with educators to build blended learning classrooms that differentiated instruction and helped meet the needs of all students.

She is passionate about the work Greenfield Learning does in supporting administrators, educators, and students. In her spare time, Gillian loves spending time outdoors with her husband and 2 children. She enjoys hiking, paddle boarding, mountain biking, and camping.

Gillian can be reached at gillian@greenfieldlearning.com.

Lisa Bartels, Educational Partnerships Specialist

Lisa has over 35 years in the field of education. She began her career teaching in Fresno County and has taught most grade levels from 1st through high school. Her favorite is 5th grade. She served as a master teacher for CSUF, curriculum rep for both math and reading, and was volunteered for most committees. Her passion has been making sure students of all abilities found success in school.

Lisa earned her degree in Liberal Studies and has a multiple subject and an English credential from CSU Fresno. She is bilingual in German after attending school there. Both of her daughters are SPED teachers following the family educational path.

She joined Greenfield Learning as an Educational Success Partner for the Central Valley in California. She loves digging into data and providing successful implementation sessions for educators and school leaders.

When not working, she enjoys her menagerie of pets and spending time with her grandson.

Lisa can be reached at lisa@greenfieldlearning.com.