2018-19 Teachers’ Bios

Christina Bacca

Christina Bacca holds a Master’s degree from The George Washington University and a B.A. in both Spanish and French. She has studied in Spain, France and Mexico. She has had a love for teaching since she was a child, when she played school with her brother. Christina taught in Fairfax County Public Schools and had the privilege of teaching educators Spanish at UVA and George Mason University. She is married to a native Spanish speaker, homeschooled her two daughters, has tutored for 18 years and is amazed at how God has given her so many opportunities to use Spanish. Currently, Christina is passionate about developing a a homeschool curriculum using Comprehensible Input, a method that allows students to understand a second language from Day 1 and acquire a high degree of proficiency in the language and the confidence to use it.

Kimberly Glover

Kimberly Glover combined her passions for teaching and photography into one fulfilled dream at CHESS. She has always loved teaching, beginning with the Bible classes she taught as a high school student. She studied English at the University of Memphis in Tennessee, with the goal of teaching high school, and also studied psychology at Northwestern State University in Louisiana.
Married to a writer and editor, she has been educating their children at home for more than a decade. Mrs. Glover’s passion for photography inspired her decision to start Cedar Box Photography three years ago. She applies the creative skills she has learned in that role to her activities in the homeschooling community, which include yearbook photography, senior portraits and graduation photos.

Lorie Zellner

I graduated from George Mason University and have a degree in Elementary Education. I taught in a private school and also was a substitute teacher in Fairfax County public schools before having my children. My six children have been homeschooled from preschool through high school and participated in many CHESS classes over the past 14 years. My youngest is a sophomore and currently taking classes at CHESS. I have taught in various homeschool co-ops, Sunday school, and am currently mentoring young moms and leading a Bible study for ladies at our church.

Sandy Kelly

Sandy Kelly has a Master of Science degree in Chemistry from the University of Colorado and a Bachelor of Science degree in Chemistry from Geneva College. She has taught chemistry at the college level at the University of Maryland and at Lord Fairfax Community College and has taught home school high school students chemistry for over ten years, both in co-ops and in private homes. She and her husband homeschooled their now 29-year-old son, who has two degrees from George Mason University and is working for a large information technology services company.

Betsy Dill

Betsy, who homeschooled her son from grades 1-12 and studied art at Virginia Commonwealth University, has been with CHESS for 17 years. Formerly a Christian school teacher for grades k-12, Betsy has taught art, English, creative writing, and public speaking in private schools and tutoring centers. She has over thirty years’ experience working as a professional illustrator for ad agencies, PBS TV, and Christian curriculum providers. She illustrated two children’s picture books and founded a professional writer’s club in the DC metro area. She is also a former Guideposts Magazine writer’s contest winner, and nominee for a Disney Teacher Award, honoring creativity in teaching.

Camilla Rivera

Camilla holds a BS in Electrical Engineering from Colorado State University. While working in the corporate world she realized she loved teaching when she was asked to travel and teach for employer. Switching to teaching her children at home just seemed natural and she homeschooled her two very different boys from preschool to college. While teaching her own children she was constantly learning new ways to present math and now shares her knowledge with the students at CHESS. She says children are more fun to teach than adults because they love learning, make her laugh, and don’t need so many breaks.

John Jenkins

John is a publisher, author and conference speaker who has been teaching homeschoolers for 20 years and at CHESS since its inception. John’s classes include effective writing for high school and college, critical reading and thinking skills, fiction writing, literature, mock trial and Microsoft Office skills. John also offers storytelling mentorships to both adults and students with a serious interest in fiction writing. His writing credits include nine short stories for Focus on the Family, including “If One Falls” which took the Higher Goals first place award for fiction in the 2000 EPA publisher’s competition for Breakaway magazine. John’s most recent books are I Love Baseball and Ghost Pirates, which are part of his Young Heroes series. John is married and a proud father of two adult sons, four lovely granddaughters, a grandson and a great granddaughter. John has lived in No. Va. all of his life. A Christian since 1970, John teaches Sunday school at Clear River Community Church. All of John’s books are available on Amazon by going to StoryShopUSA.com.


Mary O’Donnell. Mary O’Donnell is a veteran homeschooling mom of four adults, and a teacher with a B.A. in Education/Psychology who grew up in Belgium, attended French speaking schools, and looks forward to her trips back home to visit family. Her passion for the last 18+ years has been in teaching and developing curricula for Christian-centered junior and high school level French classes from Introduction to French through French IV, specifically geared for homeschoolers. Mary’s passion and care for her students, and for teaching French, is well known, and she’s constantly seeking to improve and awe them with fun ways of learning, and with her compassion for them and their learning styles. Mary wrote and published an Introduction to French curriculum purposely for junior high homeschooled students in order to address the need for a gentle introduction to foreign language – especially for those who might be struggling, or immature learners. She inspires her students to succeed by not only breaking down the material into manageable pieces, but also by her enthusiasm for them and their progress. Mary has always had a great love for Internationals, loves to speak Spanish whenever possible, and would love to learn Italian next. She is a recent nominee for The National Society of High School Scholars, Claes Nobel Education of Distinction, and is a member of the American Association of Teachers of French.

Sandy Boemerman
Sandy has a Master’s Degree in Education from Va. Tech. She has been teaching at CHESS for five years. Sandy also works as a tutor through NovaStar Prep, a tutoring company. She currently tutors three students. Before she became a mother, she taught a Study Skills class, and a Career Exploration class at Prince George’s Community College. In addition, Sandy worked with emotionally challenged children, worked for Fairfax County Social Services, and was the Personnel Manager at an education association. During the years of homeschooling her 2 kids, she and her kids participated in a 4-H club, where she developed and taught a Career Exploration class for teens. Sandy served as the HOPE high school leader for 4 years. After homeschooling her son and daughter, her daughter went on to become a nurse and her son is entering a Doctoral Program this coming fall for Industrial Psychology. Sandy is a Stephen Minister at her church, ministering one on one with women going through a difficult time. Teaching and helping teenagers is a passion, she remembers clearly what it was like to be one, and likes to assist teens in any way she can.

Dee Dee Kintzing
Dee Dee graduated Summa Cum Laude from Georgia State University with a degree in education and a passion for teaching and learning. She has over 30 years of teaching and tutoring experience in a variety of subjects and learning programs, including public high school, Classical Conversations, and several homeschool coop and enrichment programs. Within the CHESS community, she has taught classes for over a dozen years, including subjects in Art, Speech & Debate, and World Geography. Dee Dee’s three children (all graduated) were homeschooled and are former CHESS enrollees. Dee Dee and her husband co-teach 4th grade Sunday School.



Katrina Hadley
Katrina has a Bachelor’s degree in Mathematics with Distinction from the University of Kansas. She began her career at the National Security Agency analyzing encrypted messages, then moved on to Accenture, helping to develop a $15M enterprise application as part of the technical team for the Tennessee Department of Corrections. She then worked with SAIC as a consultant for the FBI, designing, testing, installing, debugging, and supporting the Combined DNA Index System (CODIS). Her responsibilities also included managing installations and upgrades of CODIS throughout the forensic community in the U.S., leading training sessions, and creating
training manuals. And then there were kids. She left the “working” world and views her highest accomplishment as raising her four children and homeschooling them for 13 years. During that time, she tutored Foundations and Essentials classes within the Classical Conversations homeschool program for nine years, and trained other tutors during its summer practicums. Although she hung up her homeschool hat a few years ago, her combined passion for math and educating the next generation for God’s glory ensues. She is currently pursuing a Master’s of Biblical and Theological Studies at Dallas Theological Seminary while teaching classes at CHESS.

Anthony Weaver
Anthony Weaver is a teacher with a desire for helping students with succeeding in academics and also in using knowledge for practical purposes. He graduated from University of Maryland with a Bachelor’s degree in Biology but possessed a love for many subjects including mathematics and the arts with his favorite subject being history. Though he spent most of his life as a resident in the state of Maryland, his church and friends have always been in Fairfax where he currently resides today. Both during and after school, he worked at a variety of jobs and activities including being a cameraman, gardener for the U.S. Botanical Gardens in D.C., an actor and back-stage manager for his local theatre group and a tutor for other students in high school and college. He currently works at Ad Fontes Academy as a teacher in both upper school and lower school.

Terry Kim. Terry holds a Master’s degree in Religion from Liberty Theological Seminary. He has a passion for youth and has served them for over ten years in a ministry and academic context. He has a strong passion for Bible literacy and shows it through his teaching as well as life applications. He loves building up relationships with his students and thus loves the homeschool teaching environment where he has the ability to treat them as individuals. He currently serves as the NOVA Advancing Native Missionaries Representative, an organization that supports indigenous missionaries in their home countries. He is currently married to his beautiful wife for 6 years and loves to spend his free time with ‘nerdy’ hobbies.

Lynn Lewis. Lynn Lewis grew up in Southern California and earned a B.S. in Psychology at California Lutheran University. She earned an M.A. in Biblical Counseling at Grace Theological Seminary, studying under Dr. Larry Crabb. Afterward she moved to Memphis, TN and married Bill, whom she met in the counseling program. They later lived in St. Petersburg, Russia for 7 years as missionaries, did humanitarian work in the Middle East for two years, and lived on Capitol Hill for several years. Lynn and Bill have four children: two grown sons, and two teenage daughters who are homeschooled. Lynn has been homeschooling for 15 years and has taught her popular Life Skills class for five years. When she’s not busy teaching & tutoring, Lynn enjoys leading a troop of American Heritage Girls, cheering for her daughters’ volleyball team, watching classic movies with her family, reading, and baking.

Cyndy Berryman. Cyndy received her BS in engineering from the University of Rochester (Rochester, NY) and her ADN RN degree in 2009 from Lord Fairfax Community College. She currently works part time as a labor and delivery nurse. Cyndy and her husband have 6 children which they have homeschooled since the oldest was in 1st grade (27 years homeschooling) and are in the process of adoption a child from Ukraine. They have graduated 5 children who all went on to college, and one is currently being homeschooled. When Cyndy had her first child, she wondered why God would have directed her to a science/math degree if she was going to stay home with her children. And then she embarked on the amazing journey of homeschooling and found her niche teaching high school math and science. God is so Good!
Walter Goode. Walter is a Christian educator with a gift of teaching by the grace of God. Walter was saved while serving in the U.S. Air Force at the age of 19. After eight years in the military, Walter went to college to earn his B.S. in Secondary Education, emphasizing English education. He has served in several churches since then, including 10 years in Puerto Rico as a missionary educator. His degrees include a Master of Arts in Bible, Master of Arts English, Bachelor of Science in Secondary Education/English. Walter has three children and eight grandchildren. He and his wife, Paula, are homeschooling their two youngest grandchildren, ages seven and five. His teaching experience includes tutoring, plus Challenge 1 for Classical Conversations. From 2005-2008 he taught English at Nash Community College, N.C. From 2008-2014 he taught at Halifax Community College, N.C. Duties have included teaching expository writing, literature-based research and major American authors, developmental English, business writing, English composition, literature, both American and British; critical thinking and humanities. At Tennessee Temple University, from 1999-2001 his duties included teaching expository writing, developmental English, children’s literature, world literature, and Shakespeare.

Heide Wethered. Heidi earned her Bachelor’s degree in Sociology and Social Work and her Master’s degree in Human Services Program Management from Western Maryland College. (now McDaniel College) She spent 17 years working for The Arc of Frederick County (Maryland) providing service coordination to people with intellectual and developmental disabilities. She has been married to her husband, Bennett, for 29 years. She homeschooled their two daughters from kindergarten through high school graduation. For eight years she taught first grade at Oak Hill Christian School. She recently began working with Prince William County’s Adult Education Program. Heidi’s favorite things to teach are History and English. She enjoys learning about historical events and figures, and loves passing that on to her students. An avid reader, Heidi strives to encourage the love of books in her students, helping them to identify and appreciate good literature . Whenever possible, Heidi enjoys spending time with her two grandsons, reading and scrapbooking.