Executive Director and Principal

Alex van Donkersgoed

Executive Director and Principal

Alex van Donkersgoed has been teaching since 2001. In addition to his role with Nimbus Christian Education he is a classroom teacher at Halton Hills Christian School. He attended Calvin College to earn a BA in History and received his OCT from Redeemer University College. He currently lives in Acton with his wife Willena and 3 children. He loves to play basketball and all manner of card and board games. Technology and its role in education has become a significant part of his life.


Matthew West

Course Developer and Teacher

Matthew had the privilege of studying at Redeemer University College under an amazing faculty. During this time He developed a passion for learning about God's creation and sharing his understanding with others. Seven years of teaching in the classroom has taught him that the "Eureka" moment is a prized treasure. It is his hope to make new concepts more appetizing and easier to digest, leaving a better understanding and desire to know more.

Sharon Mulder

Course Developer and Teacher

Sharon has been teaching since 2002 and currently teaches grade 8 at John Knox Christian School in Brampton. She is also their Curriculum Coordinator. She loves the challenge of creating units of study that engage and challenge her students. Science has always been an area of passion and the true reward is seeing students discover the wonders of creation through hands-on exploration. She has a BA from Wilfrid Laurier and BEd from Redeemer. Her love of online learning also led her to obtain her Master of Distance Education from Athabasca University, which was, appropriately, delivered online. A Google Certified Teacher, she is no stranger to using a variety of technology tools as well as preparing students to be responsible Digital Citizens.

Sharon and her husband are “empty-nesters” in Caledon. An avid gardener, Sharon thrives on outdoor activity surrounded by nature. She enjoys playing bass and both she and her husband, a bassoonist, perform regularly with the Rose Orchestra in Brampton.

Tiffany Muresan

Course Developer and Teacher

Tiffany Muresan received her Bachelor of Science (majors in math and French) and Bachelor of Education from Redeemer University College in 2015. God has granted her opportunities to teach core French in Ontario and high school mathematics in Wuhan, China. She is currently teaching part-time with Upper Grand District School Board, where she herself began learning French.

She currently lives in Waterloo with her husband and two children. She enjoys learning new games and knitting. Tiffany is passionate about helping students use the gifts God has given them to further His kingdom and to glorify Christ.

Bianca Gagliostro


Bianca Gagliostro is a graduate of Dalhousie University in Nova Scotia, where she obtained her Bachelor of Science, majoring in both Mathematics and Statistics. From there Bianca followed her passion for teaching and was blessed to receive her OCT designation from Redeemer University College. Bianca continued to grow her knowledge and received advanced qualification in Senior Level Mathematics and Special Education from the University of Toronto. Bianca’s special education background has found success accommodating diverse student needs and facilitating different type of learning approaches.

When she’s not a devoted teacher. Bianca enjoys spending time with her 2 kids and husband. She enjoys grain-free baking and travelling with her husband and children.

Catharine Kruitbosch

Course Developer and Teacher

Catharine Kruitbosch received her Bachelor of Education along with a Bachelor of Arts in Integrated Studies minoring in French and English Language and Literature from Brock University in 2012. She has held various teaching positions in both public and private schools, and currently works as an Occasional Teacher with the District School Board of Niagara as well as Jordan Christian School. She currently lives in St. Catharines with her husband and 3 young children. She loves to read almost anything, but especially enjoys biographies and memoirs. She also loves being outside and camping, running, hiking, or biking with her family.

Rebecca Eggert


Rebecca Eggert has been teaching in Christian school, homeschool, Sunday school, summer camp, and tutoring for over 20 years. She graduated from Brock University with her concurrent Bachelor of Science (Math) and Bachelor of Education in 1997. She has taught and tutored all subjects but her favourite has always been math. She is currently working as a high school teacher at Vianney Academy as well as Nimbus Christian Education. Rebecca lives in Mississauga with her husband, her three teenaged children, and her B.F.F. (best furry friend) January. Rebecca loves dogs, hiking, spending time with friends, but most of all...Jesus.

Karen Timson


Karen Timson worked for York Region District School Board throughout her teaching career in a variety of roles, e.g. secondary mathematics teacher, department head of mathematics, intermediate/senior mathematics consultant. She has her Masters of Education in Curriculum and has taught Additional Qualifications Courses for teachers at OISE (Ontario Institute for Studies in Education) both face-to-face and online.

Karen retired from YRDSB in 2011 to pursue other interests in mathematics education including short-term teaching contracts in Christian schools in Portugal and New Zealand, starting a tutoring business and volunteering at a local Christian school in their mathematics program.

She lives in Stouffville.

Michelle Vanderspek


Michelle received her Bachelor of Education with a double major in History and Psychology in 2017 from Redeemer University College in 2017. She has taught at John Knox Christian School in Wyoming and at Milton Christian School. She currently tutors students in the Halton Region.

She currently lives in Georgetown. She enjoys reading especially biographies and fantasy. She also enjoys photography and travelling.

Ronald Holla


Ronald became a teacher because he enjoyed teaching Sunday School and speaking from the pulpit as a lay preacher in both French and English. A CPA and graduate of Athabasca University with a Bachelor of General Studies in Business and French, Ronald went on to study Education, then History, graduating in 2001 with a Masters in Education and a Masters in Arts from Royal Military College in 2015. He has been an officer with Air Cadets since 2014.

Ronald has been teaching French, Business, History, English, Careers, Civics and Cooperative Education for twenty years and his vision of education is that of opening up possibilities for students. He is excited at the idea of bringing his Christian worldview into the subjects he will be teaching with Nimbus.

Presently, Ronald lives with his wife of 37 years and welcomes visits from his three grandchildren who enjoy visiting Grandma and Grandpa.

Scott Newbury

Course Developer

Scott Newbury has been teaching since 2003 and is currently employed at Brampton Christian School (since 2007). He attended Memorial University of Newfoundland where he graduated with a Bachelor of Science (Joint-Major in Physics and Applied Mathematics) and a Bachelor of Education. He enjoys teaching Math and has taught many of the courses offered at the high school level.

He currently lives in Orangeville with his wife, Heather, and two daughters. They are a musical family and play multiple instruments and lead worship in church. He enjoys sports (such as Badminton and Ultimate Frisbee) and is also very interested in technology.

Jessica Brooks

Course Developer and Teacher

Jessica Brooks has served in traditional Christian schools, private international schools and is currently working as an educational consultant. Her passion is exploring the world with her students and she is excited to do that in an online format. Sports and outdoor activities are things that she likes to do in her spare.

She has three adult children and lives in southwester Ontario with her husband, cat, dog and assorted foster animals.

Julia Paddock


Julia completed her Bachelor of Arts with a Theatre major, with English and History minors from Redeemer in 2019. She Graduated with her Bachelor of Education from Redeemer in 2021. Rooted in these studies, she felt called to peruse a career within Christian Education. She has experience teaching with an integration of her faith through Sunday School, Camp Ministry, and Christian School placements, and is excited to begin teaching through Nimbus Christian Education. 

Starting in September, she will also be employed as a Part-time Humanities teacher at London Christian High, and moving closer to her Fiancé’s hometown. She enjoy a variety of creative ventures including poetry writing, kombucha making, baking, knitting and sewing.

Heather Smid


Heather Smid earned a Bachelor of Arts (Honours) in English Literature from Queen's University in 2004 and a Master's degree in English Literature from Queen's the following year. She currently works at Heritage Community Christian School. 

Heather lives in Frankville, Ontario with her husband, four children, and assortment of pets and farm animals. She loves vegetable gardening and tending to her small hobby farm, and in her spare time she makes and sells goat's milk products.

Gwyneth Zylstra

Culture and Curriculum Coach

Gwyneth graduated with a BA in General Studies ('97), BEd ('98) from Trinity Western University and has been involved in Christian education as a classroom teacher, subject specialist, coach and/or program developer ever since. Currently, she is completing a Masters of Arts in Leadership, Theology and Society with Regent College.

Gwyneth lives in Athens, Ontario with her husband and three children whose company she enjoys very much. She is passionate about the pursuit and practice of well-belonging for the staff and students she serves.