Administrator and MS/HS Math and HS Science Teacher

Cheryl Kramer moved to Tucson in 1987 to attend the University of Arizona where she received her B.S. in Molecular Biology and her Masters in Business Administration. She worked at the Arizona Cancer Center for 13 years before becoming a full-time stay-at-home mom. Since then, Cheryl has worked as a school secretary, interim school principal, substitute teacher, math tutor and PTO treasurer as well as being involved in numerous volunteer activities. Cheryl and her husband, Ken, have two daughters. She is so excited to be part of the FCA family and loves showing the students how God can be found in math. Psalm 139 is her life Bible passage. Mrs. Kramer will be teaching 7th grade Math, Algebra 1 and HS Matter & Energy.

Language Arts/History Teacher

Mrs. Osterbaan is an ACSI and AZ State certified teacher. She has been teaching for twenty years, ranging from Kindergarten to 9th grade with most of her teaching experience being in Christian schools. Naomi has two children and a husband who fully supports her teaching at FCA. "Being at FCA is a pleasure. Students are eager and willing to learn, parents are supportive and friendly, and it is a delight to work with the staff. The atmosphere at FCA is Christ centered and I feel honored to come each day." Mrs. Osterbaan teaches Language Arts and History.

History/Art Teacher

Mrs. Seals was born in Wyoming; however she has lived in Tucson since she was 18 months old. She and her husband Randy have two daughters and two granddaughters. Leisa studied music for three years at the U of A. She focused on History and Art for four years at Pima college where she earned her Associate's Degree in General Studies. Her heart's desire is to serve God where she can freely share her love of the Lord. "The Lord opened the door for me at FCA, and I haven't looked back. I am grateful and priviledged to have this opportunity." Mrs. Seals teaches Intro to Art, Art History, Life Skills, 8th grade History, and Geography/Health

Math and Science Teacher

Mrs. Lisa LaRoque is a Tucson native. She and Chris were married in 1990 and have three children and one grandchild. Lisa has Associates degrees in Early Childhood and General Science. She has been teaching in Christian schools since 2008, ranging from Preschool to High School classes. Lisa joined FCA in 2017. She loves being able to share Christ with her students along with the academics. Lisa teaches middle school Math, Science and Bible.

H.S. Bible, H.S. History, H.S. Language Arts Teacher

Jim Purdy has Bachelor Degrees in Business as well as Theology and a Masters degree in Organizational Management. He has been married to his wife Amy since 1974 and they have one daughter. He has served in various ministerial positions for over 30 years as well as being a teacher in both public schools and here at FCA. Jim has also been a high school sports referee for 40 years, officiating games throughout southern Arizona. His life Scripture is “Behold what manner of love the Father has bestowed on us, that we should be called the children of God! (I John 3:1) Mr. Purdy teaches High School Bible, World History and HS Language Arts.

H.S. Math Teacher

Mr. Aaron Posey joined FCA in 2019 to teach Geometry and Pre-Calculus.  His currently pursuing a BS in Computer Science and Mathematics.  Aaron has a passion for teaching STEM related curriculum to the next generation.  He is also a professional magician and has used this skill to create a fun, engaging and interactive show for grade school children across southern AZ in his spare time.  This show integrates magic and illusion with science, math and technology.  Aaron has been married for 18 years to his lovely wife and high school sweetheart, Melissa. He also has a wonderfully charming 12 year old son, Luke. Outside of work and school, Aaron, Melissa and Luke spend time hiking, rock climbing, and enjoying StarTrek. Aaron's favorite scripture is Matthew‬ ‭4:19‬ ‭KJV‬‬  “And he saith unto them, Follow me, and I will make you fishers of men.”

American Government / Economics Teacher

Mr. Ken Kramer is a Tucson native who graduated form the U of A with a B.S. in Planning and Regional Development. He minored in business and finance. He has worked in construction and finance.  In 2019, Mr. Kramer retired from 20 years in Federal Law Enforcement.  Mr. Kramer started at FCA volunteering his time as the Cross Country Coach in 2018.   He has been teaching American Government and Economics at FCA since fall of 2019.  Mr. Kramer is married to Mrs. Cheryl Kramer and together they have two daughters.  

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