MBX Summer School

Learn more about MBX Summer School’s academic courses and athletic programs by viewing the Summer School Presentation and watching the MBX Summer School Zoom Session from March 10, 2026. 

 

2026 MBX Summer School Registration

MBX Summer School is for incoming 9th graders and high school students.  Please note  ourrefund policy prior to enrollment.

  • Registration opens –  March 12, 2026
  • Registration for Academic and Enrichment classes closes – May 10, 2026
  • Registration for Athletics closes – June 5, 2026
  • Registration for Credit Recovery classes closes – June 23, 2026


2026 MBX Summer School Dates

In-person and Online Academic classes will take place Monday, June 22 through Thursday, July 30.
Athletics courses vary. Please see Athletic schedule for exact dates and time.

 

2026 Summer School Info

Academic classes:

  • In-person learning – MBX is excited to offer in-person classes this year.  All in-person classes will take place on the Mira Costa High School campus Monday-Thursday, starting June 22 and end on Thursday, July 30.  Hours are 8:30am-2:00pm and students must attend daily!  Classrooms will be assigned the week prior to the start of classes.  **All grades are whole grades, no plus or minus.
  • Online learning – MBX Foundation has partnered with an Online Learning Courseware to offer comprehensive asynchronous, self-paced online courses. Our course catalog is robust, featuring standards-aligned, interactive, and media-rich content designed to be personalized and engaging. Students have the flexibility to work on their courses at any time between June 22 and July 30. All finals MUST be taken in person at MCHS.  Please note, grades may not be finalized on the last day of the semester as teachers may require additional time to grade finals and evaluate final projects. ** All grades are whole grades, no plus or minus.
     
  • Credit Recovery – Students needing to remediate a class previously taken can use our online learning platform. Please do NOT register for classes until you know your student’s final grade. ** Students can only retake classes if they earn a D or F

 

Enrichment classes

MBX is proud to offer NEW summer enrichment opportunities for students. This year we have an Algebra bridge class, a Spanish bridge class and a College Application Help class.  See course description for dates and times offered.


Athletics

Student athletes meet in cohorts on the Mira Costa campus. Please note athletics may have a different schedule from academic summer school due to CIF rules. You can find info on our Athletics classes here.

2026 Tuition

In-person or online learning 

  • 1 semester course: $450
  • 2 semester course: $900
  • In-person Biology and Chemistry lab fees:  additional $25 per semester

Enrichment classes 

  • Varies by course.  See course descriptions for details.

Athletics 

  • Varies by course. See course description for details.

 

MBX Refund Policy
All course offerings are subject to change based on enrollment and staffing.  In the event MBX cancels a course, all tuition and fees will be fully refunded.

If you wish to withdraw from a course after registering, it must be done in writing via our Course Change and Withdrawal Form

  • Requests received before May 10 – full refund of tuition (less a $50 administration fee).
  • Requests received between May 10 and June 5 – partial (50%) refund of tuition (less a $50 administration fee)
  • The last date to request a refund is June 5, 2026. There will be no refunds after June 5.
  • All refunds will be via check and take approximately 2 weeks to process.

 

Course Credit (Academic)

MBX is a WASC accredited supplemental education program.  All MBX academic courses are accepted for credit on Mira Costa High School transcripts for Mira Costa students.

Each semester course is equivalent to 5 high school credits. Successful completion of yearlong courses earns 10 high school credits.

MBX academic courses are eligible for UC/CSU approval and meet A-G subject requirements once placed a transcript through Principal Certification (As described by UC Admissions)

If you attend a high school other than Mira Costa, you are responsible for ensuring that your grade will be accepted on your home school transcript and will subsequently meet the A-G subject requirement.

** All grades are whole grades, no plus or minus.

 

Grade Reports

Grades in courses taken at MBX are automatically placed on the Mira Costa transcripts for Mira Costa students in September. Any student who does not wish to have his/her grade on their Mira Costa High School transcript must ask their parent to request this by August 14, 2026 at 4:00 pm by emailing

If you are not a full time Mira Costa High School student, please email to request a transcript. Include the student name, course taken, school name and school address in your email for the sealed transcript to be sent.

Grade discrepancies must be reported immediately to the Summer School Principal. The appeal or challenge deadline for disputed grades is thirty days after the closing of classes (August 29, 2026). No changes, adjustments or corrections will be made after that date. 

** All grades are whole grades, no plus or minus.

 

Prerequisites

You may not enroll in a course for which you do not have the prerequisite or its equivalent. Prerequisites are listed in the course descriptions. Instructors may not waive prerequisites within a department sequence and accept students into the next level. 

Note: Certain Athletics/Activities courses have tryouts. These are listed in the various course descriptions if applicable.

 

Scholarships

A limited number of need based scholarships are available. Please consult your MCHS school counselor for more information or email us at . Consideration for scholarships will require the Education Benefits Letter from MBUSD – please send this letter with your request.



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