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Student Life
Our mission at SJ23 is not only to foster the academic success of our students, but also to nurture lifelong Catholic values that build strong character and meaningful relationship with God. In partnership with our families and the Catholic Church, we strive to guide each child as he or she grows and matures in knowledge and faith. Students develop a deep appreciation of the liturgy through active weekly Mass participation and through daily religious instruction, reflection, and prayer. SJ23 students further their spiritual journey by preparing for and receiving the sacrament of first holy Communion and reconciliation. Outside the classroom, students focus on individual and communal spiritual growth through retreats and service.
SJ23 offers many co-curricular and student life enrichment programs in addition to its outstanding core curriculum.
8th Grade Stations of the Cross 2026
Technology & Innovation
In the realm of education, the infusion of technology seamlessly enhances both traditional and hands-on teaching methodologies, fostering a more enriching educational journey for our students. The incorporation of a diverse range of contemporary digital tools not only complements conventional approaches but also nurtures the cultivation of digital citizens. Within a Catholic context, this integration holds a unique significance, emphasizing the responsibility of students to navigate the digital landscape in alignment with moral values. By embracing technology, we empower our students to develop into conscientious digital citizens, equipped with the skills to thrive in our interconnected world while upholding Catholic principles. Our integrated, hands-on curriculum based on Science, Technology, Engineering, Art, and Math (STEAM) engages students of all academic levels. It promotes a deeper understanding of real-world concepts and helps students to become critical thinkers, thoughtful listeners, and effective speakers. In addition to the regular curriculum, middle-school students have electives in the areas of Visual Arts, Coding, Forensics, Extended Enrichment, and more! A student-centered environment dedicated to a deeper understanding of real-world concepts and their relationship to each other. It provides a collaborative meeting space with a multi-media area and includes flexible seating and 3D Printers.
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It was a beautiful day to BE BACK TOGETHER! Our prep for Back to School has officially begun, and we are recharged, refocused, and more ready than EVER to welcome our students in just a few short weeks!
A huge thank you to our incredible staff who make it all possible—especially the ...familiar faces we celebrated who have been part of our school family for 5/10 years! It takes a village and we are glad you’re part of ours.
Scroll to browse ➡️ and celebrate these amazing milestones with us!
19 Days to Go! What’s still on your Summer Bucket List?
Beach day? Ice cream? Camping? Sleeping in?
Whatever is on your list, SOAK IT UP—we’re just 19 days away from seeing our Phoenix family again!
Please help us welcome three new members to the St. John XXIII Catholic School family! We are so excited to welcome them to our team for the 2026–2027 school year!
Mrs. Danielle Schulze | K3 Teacher
Mrs. Schulze brings 19 years of experience in early childhood education to St. John ...XXIII! She earned her Bachelor’s degree in Early Childhood Education, with certifications in both Regular and Special Education, from UW-Whitewater and her Master’s degree from Cardinal Stritch University. She is passionate about engaging our youngest learners through meaningful, interactive experiences filled with play, art, music, and movement.
Mr. Zach Wilder | Physical Education Teacher & Athletic Director
Mr. Wilder graduated from Concordia University Wisconsin in 2025 with a bachelor’s degree in Exercise Physiology. After gaining experience teaching at Nativity Jesuit Academy, he knew how much he loved building relationships with students and creating a positive, energetic environment through physical education and athletics. We are thrilled to have his enthusiasm and energy joining our Phoenix community!
Mrs. Sarah Lindauer | Special Education Liaison
Mrs. Lindauer joins us with a strong background in both elementary and special education. She earned her degree from UW-Eau Claire and has experience teaching early childhood, elementary, and special education. Most recently, she designed and launched a Special Education Program and Special Needs Scholarship Program at St. Mary Parish School. Sarah has a passion for supporting students with diverse learning needs and celebrating their individual growth and success.
Please join us in giving Danielle, Zach, and Sarah a BIG Phoenix welcome! We are blessed to have them joining our school family and can't wait to see the difference they will make in the lives of our students.
Welcome New Families! We are excited to welcome all of our new students and families joining St. John XXIII Catholic School this year. Whether you're joining us in Pre-3, Kindergarten, Middle School, or somewhere in between, we're honored that you've chosen SJ23 as your educational ...home.
Here, you'll find:
📚 Strong academics
✝️ Faith-filled learning
🤝 A supportive community
❤️ Opportunities to serve, lead, and grow
Current SJ23 families, help us extend a warm welcome by sharing a greeting in the comments! We can't wait to begin this journey together.