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Board of Directors

Board of Directors

OCA's Board of Directors works tirelessly to ensure the mission of Oasis Christian Academy. As an independent entity unaffiliated with any specific ministries, our Board of Directors is a vital component of the academy. They bring a diverse and varied insight, as the Lord has called them from different walks of life.  While board members are volunteers, they are intrinsically involved in overseeing and confirming best practices throughout OCA.  

Our mission is to preserve our history, clearly defining where we came from and following God’s plan for the Academy’s future. We will seek God's plan for the future of Oasis Christian Academy by continually being in prayer, reading and studying His Word, and listening to Him.  We believe in being committed to excellence in education by maximizing available resources and understanding our proper role in overseeing Oasis Christian Academy with openness and integrity.  We are committed to the Oasis family we serve by providing guidance, support, and encouragement to all stakeholders, striving to honor God with each interaction, and working for the individuals, families, and school as a whole. 

"Without consultation, plans are frustrated, But with many counselors they succeed."- Proverbs 15:22 (NASB)

Select a Profile
  • Becky Argueta (Board Chairperson)
  • Robyn Pospichal (Vice Chairperson)
  • Lynn Polston (Board Treasurer)
  • John Schreck (Board Member)
  • Johnathan Bilbrey (Board Member)
  • Heather Rees (Board Member)
  • Brian Peters (Board Member)
  • Craig Shirley (Board Member)
  • Brittany Holley (Board Member)
  • Becky Argueta (Board Chairperson)

  • Robyn Pospichal (Vice Chairperson)

  • Lynn Polston (Board Treasurer)

    Insurance Agent
  • John Schreck (Board Member)

    Pastor
  • Johnathan Bilbrey (Board Member)

  • Heather Rees (Board Member)

  • Brian Peters (Board Member)

  • Craig Shirley (Board Member)

  • Brittany Holley (Board Member)

Becky Argueta (Board Chairperson)
Robyn Pospichal (Vice Chairperson)

We are excited to welcome Mrs. Pospichal to our Board!  We will have more information soon.

Lynn Polston (Board Treasurer)
Insurance Agent

 

 

Lynn Polston is originally from Connecticut.  She relocated to the Winter Haven area when she was 18.  She has been married to her husband David for 16 years and has the privilege of raising their granddaughter, who attends Oasis.  She has been the owner of an Insurance Agency since 2017, and prior to that, she was a Licensed banker.

Lynn loves this school and wants to see it succeed and grow for many more years to come.  Lynn believes It gives kids a great place to learn and develop into successful young men and women with a strong Christian foundation that will help them through life. She feels strongly about Christian education and wishes every child could have the opportunity to attend this type of school.

John Schreck (Board Member)
Pastor
Johnathan Bilbrey (Board Member)

We are excited to welcome Mr. Bilbrey to our Board!  We will have more information soon.

Heather Rees (Board Member)

We are excited to introduce one of our newest Board members, Heather Rees; more information is coming soon!

Brian Peters (Board Member)

We are excited to introduce one of our newest Board members, Brian Peters; more information is coming soon!

Craig Shirley (Board Member)
Brittany Holley (Board Member)

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  • About
  • Why OCA
  • Who We Are
  • Our Mission
  • The L.I.O.N. Standard
  • Board of Directors
  • Administration
  • Faculty & Staff
  • After OCA
  • Careers
  • Contact Us
  • Campus Locations

Calendar

May 2026
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
Theatre Production
Theatre Production
May 1, 2026
EE Library/Splash Pad Field Trip
EE Library/Splash Pad Field Trip
May 1, 2026
2
Theatre Production
Theatre Production
May 2, 2026
3
Senior Trip
Senior Trip
May 3, 2026
4
Teacher Appreciation Week
Teacher Appreciation Week
May 4, 2026
Senior Trip
Senior Trip
May 4, 2026
5
Teacher Appreciation Week
Teacher Appreciation Week
May 5, 2026
Senior Trip
Senior Trip
May 5, 2026
MAPS Testing K-11
MAPS Testing K-11
May 5, 2026
Tampa Watch Field Trip-9th Grade
Tampa Watch Field Trip-9th Grade
May 5, 2026
6
Teacher Appreciation Week
Teacher Appreciation Week
May 6, 2026
Senior Trip
Senior Trip
May 6, 2026
MAPS Testing K-11
MAPS Testing K-11
May 6, 2026
7
Teacher Appreciation Week
Teacher Appreciation Week
May 7, 2026
Senior Trip
Senior Trip
May 7, 2026
MAPS Testing K-11
MAPS Testing K-11
May 7, 2026
8
Teacher Appreciation Week
Teacher Appreciation Week
May 8, 2026
Senior Trip
Senior Trip
May 8, 2026
EE Donuts with Grownups (7:30-8:30 am and 12:10-1:00 pm)
EE Donuts with Grownups (7:30-8:30 am and 12:10-1:00 pm)
May 8, 2026
9
Senior Trip
Senior Trip
May 9, 2026
10
Mother's Day
Mother's Day
May 10, 2026
Senior Trip
Senior Trip
May 10, 2026
11
12
Senior Service Day
Senior Service Day
May 12, 2026
Munchkins with Moms 7:15-8am (K5-12th)
Munchkins with Moms 7:15-8am (K5-12th)
May 12, 2026
13
K5/12th Graduation Walk
K5/12th Graduation Walk
May 13, 2026
14
Senior Chapel/ Yearbook Presentation
Senior Chapel/ Yearbook Presentation
May 14, 2026
Baccalaureate (6:00 pm)
Baccalaureate (6:00 pm)
May 14, 2026 | 6:00 PM - 7:00 PM
15
Senior Graduation (6:30 pm)
Senior Graduation (6:30 pm)
May 15, 2026
1st Grade field trip- Polk County History Center/Mary Holland Park
1st Grade field trip- Polk County History Center/Mary Holland Park
May 15, 2026
16
17
18
5th Grade Field Trip-Family Fun Center
5th Grade Field Trip-Family Fun Center
May 18, 2026
EE End of Year Program 6:30pm
EE End of Year Program 6:30pm
May 18, 2026 | 6:30 PM - 12:00 AM
19
K5- Last Day of School
K5- Last Day of School
May 19, 2026
K5 Graduation (6:30 pm)
K5 Graduation (6:30 pm)
May 19, 2026 | 6:30 PM - 7:30 PM
20
21
1st-11th: Last Day of School- (Early Dismissal, No Aftercare)
1st-11th: Last Day of School- (Early Dismissal, No Aftercare)
May 21, 2026
EE- Last Day of School
EE- Last Day of School
May 21, 2026
8th Grade GradVenture (Universal)
8th Grade GradVenture (Universal)
May 21, 2026
22
Employee Workday: OFFICE CLOSED/ NO SCHOOL
Employee Workday: OFFICE CLOSED/ NO SCHOOL
May 22, 2026
23
24
25
Memorial Day: OFFICE CLOSED
Memorial Day: OFFICE CLOSED
May 25, 2026
26
Office Open (9am-1pm)
Office Open (9am-1pm)
May 26, 2026
27
Office Open (9am-1pm)
Office Open (9am-1pm)
May 27, 2026
28
Office Open (9am-1pm)
Office Open (9am-1pm)
May 28, 2026
29
30
31
Friday, May, 1
Theatre Production
May 1, 2026
EE Library/Splash Pad Field Trip
May 1, 2026
Saturday, May, 2
Theatre Production
May 2, 2026
Sunday, May, 3
Senior Trip
May 3, 2026
Monday, May, 4
Teacher Appreciation Week
May 4, 2026
Senior Trip
May 4, 2026
Tuesday, May, 5
Teacher Appreciation Week
May 5, 2026
Senior Trip
May 5, 2026
MAPS Testing K-11
May 5, 2026
Tampa Watch Field Trip-9th Grade
May 5, 2026
Wednesday, May, 6
Teacher Appreciation Week
May 6, 2026
Senior Trip
May 6, 2026
MAPS Testing K-11
May 6, 2026
Thursday, May, 7
Teacher Appreciation Week
May 7, 2026
Senior Trip
May 7, 2026
MAPS Testing K-11
May 7, 2026
Friday, May, 8
Teacher Appreciation Week
May 8, 2026
Senior Trip
May 8, 2026
EE Donuts with Grownups (7:30-8:30 am and 12:10-1:00 pm)
May 8, 2026
Saturday, May, 9
Senior Trip
May 9, 2026
Sunday, May, 10
Mother's Day
May 10, 2026
Senior Trip
May 10, 2026
Tuesday, May, 12
Senior Service Day
May 12, 2026
Munchkins with Moms 7:15-8am (K5-12th)
May 12, 2026
Wednesday, May, 13
K5/12th Graduation Walk
May 13, 2026
Thursday, May, 14
Senior Chapel/ Yearbook Presentation
May 14, 2026
Baccalaureate (6:00 pm)
May 14, 2026 | 6:00 PM - 7:00 PM
Friday, May, 15
Senior Graduation (6:30 pm)
May 15, 2026
1st Grade field trip- Polk County History Center/Mary Holland Park
May 15, 2026
Monday, May, 18
5th Grade Field Trip-Family Fun Center
May 18, 2026
EE End of Year Program 6:30pm
May 18, 2026 | 6:30 PM - 12:00 AM
Tuesday, May, 19
K5- Last Day of School
May 19, 2026
K5 Graduation (6:30 pm)
May 19, 2026 | 6:30 PM - 7:30 PM
Thursday, May, 21
1st-11th: Last Day of School- (Early Dismissal, No Aftercare)
May 21, 2026
EE- Last Day of School
May 21, 2026
8th Grade GradVenture (Universal)
May 21, 2026
Friday, May, 22
Employee Workday: OFFICE CLOSED/ NO SCHOOL
May 22, 2026
Monday, May, 25
Memorial Day: OFFICE CLOSED
May 25, 2026
Tuesday, May, 26
Office Open (9am-1pm)
May 26, 2026
Wednesday, May, 27
Office Open (9am-1pm)
May 27, 2026
Thursday, May, 28
Office Open (9am-1pm)
May 28, 2026

Upcoming Events

May 1 - Friday
Theatre Production

EE Library/Splash Pad Field Trip
May 2 - Saturday
Theatre Production
May 3 - Sunday
Senior Trip
May 4 - Monday
Teacher Appreciation Week

Senior Trip
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151 King Road
Winter Haven, FL 33880
Main Office: 863-293-0930
info@ocalions.org

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Oasis Christian Academy admits students of any race, color, nationality, or ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to the students at the school. It does not discriminate based on race, color, nationality, or ethnic origin in the administration of its educational policies, scholarships, financial programs, or athletic and other school-administered programs. 

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