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Challenger School - Sunnyvale | Private School in Sunnyvale, California
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Challenger School - Sunnyvale

3.9
(49 reviews)

Business Details

1185 Hollenbeck Ave, Sunnyvale, CA
94087, United States
(408) 245-7170
https://www.challengerschool.com/campus/california/sunnyvale

About

Private SchoolPreschoolKindergartenMiddle SchoolElementary SchoolChallenger School
Challenger School has been inspiring children to achieve since 1963. Challenger School Sunnyvale is a Sunnyvale private school with unmatched academic results. Our students scored in the top 10% nationally on the 2024 Iowa Assessment. Start early and start right. Explore our preschool curriculum. We offer preschool year-round from as early as 7 a.m. to 6 p.m. Our preschool programs are a surprisingly affordable alternative to daycare and can fit with your schedule. Children 2 years and 9 months or older are eligible for our preschool programs. Our Sunnyvale campus offers elementary school for kindergarten through eighth grade. Schedule a tour today to discover the Challenger difference. Conveniently located in Sunnyvale, CA.

Details

  • Wheelchair accessible entranceAvailable

Location

Challenger School - Sunnyvale
1185 Hollenbeck Ave, Sunnyvale, CA
94087, United States

Hours

Monday7:00 AM - 6:00 PM
Tuesday7:00 AM - 6:00 PM
Wednesday7:00 AM - 6:00 PM
Thursday7:00 AM - 6:00 PM
Friday7:00 AM - 6:00 PM
SaturdayClosed
SundayClosed
4/10/20267:00 AM - 6:00 PM

Reviews

3.9
49 reviews
5 stars
29
4 stars
7
3 stars
3
2 stars
0
1 star
10
  • TY
    Takuya Yoshioka
    Apr 4, 2026
    5.0
    My child has been attending this school since February 2026, and he tells me every day how much fun he is having. He is gaining wonderful experiences here on a daily basis. He comes home each day with things he has created through learning activities, crafts, and drawing, and I truly enjoy seeing his work every day as a parent. He absolutely loves his teachers, Shilpi and Sunitha, and I can clearly see how sincerely and thoughtfully they support him, especially since his English skills are still developing. This is a wonderful school, and as a parent, I feel it is a place I can trust with confidence.
  • AN
    A N
    Mar 20, 2026
    1.0
    Our experience with Challenger School Sunnyvale Campus was disappointing. Known behavioral concerns were not handled with urgency, and there was little empathy during a family emergency. Lack of transparency and parent involvement made the process feel unfair. We withdrew our son and hope meaningful changes are made.
  • AN
    anusha nalluri
    Mar 19, 2026
    1.0
    Our experience with Challenger School Sunnyvale Campus raised serious concerns. Repeated issues affecting our child were known but not addressed proactively. During a family emergency, the lack of empathy and flexibility was disappointing. Decisions felt one-sided and unclear. We ultimately withdrew our son. Parents should stay closely involved.
  • KC
    kuldeep chaitanya
    Mar 19, 2026
    1.0
    Our experience with Challenger School (Sunnyvale campus) has been deeply disappointing. While the school emphasizes academic rigor, our recent experience raised serious concerns about how student safety, behavioral incidents, and exceptional family situations are handled. There were repeated concerns involving inappropriate behavior toward our child that were known to staff. However, the response remained limited to warnings, without a structured or proactive resolution. This lack of escalation or preventive action was concerning. The situation became even more troubling during a genuine family emergency that required our child to be with us. The school’s approach lacked empathy and flexibility, and decisions felt rigid and disconnected from the realities families sometimes face. Additionally, decisions following the incident were made with limited transparency and without meaningful parent involvement. The overall process felt unilateral, with little opportunity for discussion or consideration of context. As a result, we withdrew our son from Challenger School with immediate effect due to concerns about accountability and unilateral decision-making by the school management. We urge other parents to monitor their children’s well-being closely, as these issues may not be apparent in day-to-day school life. Awareness and proactive communication can help avoid situations like ours. We hope the school reflects on this experience and improves its processes around bullying prevention, incident handling, compassionate handling of family emergencies, and parent communication.
  • IS
    Isha shah
    Feb 3, 2026
    5.0
    We’ve had a wonderful experience during our first two weeks at this preschool. We were very nervous about starting full-day preschool for our 3.5-year-old since she had never done full days before. She is very attached to us and a bit slow to warm up, and she had only attended intermittent half-day school due to traveling to India to spend time with her grandparents. Ms. Denise, the director, gave us a lovely school tour and took the time to thoughtfully address all our concerns, both in person and over email. She is truly wonderful. We were hoping to find a school that feels loving and nurturing while also encouraging meaningful learning, and this school has been a perfect fit so far. Despite her initial hesitation, our daughter has grown to absolutely love her school and asks to go every day. Her teachers, Ms. Sunitha and Ms. Shilpi, are incredibly kind, patient, and attentive. They are so engaged with the children that our daughter talks endlessly about her teachers and often pretends to be them with her soft toys at home. She is always cheerful at pickup and excited to share her day during the car ride home. It’s so wonderful to hear her singing the Challenger School song and many other songs she learns at school. On her very first day, she told me, “Ms. Sunitha said A has two sounds! You forgot to teach me the other sound!” — which made me smile. I couldn’t believe we were already talking about long vowels on her very first day. It’s clear she’s enjoying herself and absorbing so much in such a fun way. Drop-offs are still a little emotional at times, but they only last a few seconds before she happily joins her classmates. Everyone in the front office is very supportive, too. We would highly recommend this preschool to any parents looking for a caring, nurturing, and enriching environment for their child.

Frequently Asked Questions About Challenger School - Sunnyvale

What types of educational programs does Challenger School - Sunnyvale offer?

Challenger School - Sunnyvale offers preschool, kindergarten through eighth grade elementary and middle school programs with a focus on high academic achievement.

What are the preschool program hours at Challenger School - Sunnyvale?

Preschool programs run year-round from 7 a.m. to 6 p.m., providing a flexible and affordable alternative to daycare.

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