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International School of Denver

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2022-23 Trimester 3 Catalog

Registration At a Glance 

  • Advanced registration is required for all Extended Day School programming.
    • For Trimester 3: Registration opens Wednesday, February 1 at 10:00 AM in the Parent Portal and closes Friday, February 10 at 11:59 PM*.
    • Registration is for the full trimester. Drop-in and one-off signups are not available.
    • *Late registration fee: Registration is open for approximately a week and a half each trimester. Any registrations made beyond this point will incur a $25 late registration fee.* 
    • Please note that club offerings are still subject to change.
  • Trimester 3 programming dates:
    • T3 Athletics (G6-8) will run Monday February 27 - Friday May 19.
    • T3 Clubs will run Monday February 27 - Friday May 26 (No clubs last week of school).
    • T3 Before-care and After-care will run Monday February 27 - Thursday June 1 (Before care/Aftercare will only be available the last week, 5/29 - 6/1, to those already signed up for the full trimester. No last week sign ups only.)
  • Any registration adjustments will be accommodated after registration closes.
  • Cancellations and refunds for EDS are not available. Extenuating circumstances will be assessed on a case by case basis. Please contact


Full Extended Day School Guidelines and Logistics

Parent Portal

Trimester 3 Clubs (3:45 - 4:45 PM)

Before-Care, After-Care, Study Hall and Third Language

Middle School Athletics (Grades 6, 7, 8)

Private/Small Group Music Lessons (All Ages)