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Established in 2005, Colorado International School (CoIS) is a private non-profit international school.  An American-International immersion school which serves students in pre-kindergarten through 8th grades (ages 3-14).  CoIS immerses students in Spanish, Mandarin, German, French, and English in our day programs. We also offer Enrichment Program courses in Farsi, Arabic, Japanese, Russian, and Italian as well as our five main languages.

Colorado International School is a candidate school* for the International Baccalaureate Primary Years Programme (PYP).  This school is pursuing authorization as an IB World School. IB World Schools share a common philosophy—a commitment to high-quality, challenging, international education—that we believe is important for our students.


Join CoIS parents, faculty, staff, alumni and friends at the first annual Spring Fling and Silent Auction on Saturday, May 10, at Blake Street Tavern. Adults are $25, children under 12 are free, and guests ages 13-20 are $10. Included … Continue reading

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Now is the time to plan your summer. Please help CoIS get the word out for our summer camps! The registration process is very simple via the internet. Registration for the Mountain Camp is now open. Please click on this … Continue reading

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Eighth grader Océane is working on her personal project. As some of you know, I chose to start my own organization that helps girls all around the world. This Organization is created in alliance with Girl Up and the United … Continue reading

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F-1 International Students at CoIS

If you are a hockey fan, please support our current F-1 international student, CoIS 8th grader Aleksey Sukhomlin, with his team, The Roughriders. CoIS is improving its outreach to international students who are interested in attending CoIS on an F-1 student … Continue reading

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Chinese Student Exchange Program

CoIS is working with an outdoor education program in China to host students from China February 6-18, 2014.  Students from CoIS and its partners would travel to China during the Fall of 2014.  Additional details on students (ages, etc.) will … Continue reading

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Professional Development

Professional development is continuous at CoIS.  As part of our Family Partnership Plan, we would like to share with you results of our professional development throughout the year.  A schedule of informational sessions will be set for  on ACIS Head … Continue reading

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Request for Financial Feedback

The IT parent volunteer (Thank you, Greg!) is recommending that the School offer payment transactions through Dwolla which is associated with a specific credit union. Dwolla is a cash-based payment network that provides real-time, low cost, online and mobile payments. … Continue reading

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Please remember that attendance each day is tracked in the Front Office. Please notify the office by email, coisfrontoffice@gmail.com. or by telephone, 303-282-6666. The Front Office will then notify teachers of your child’s absence. Thank you.

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* Only schools authorized by the IB Organization can offer any of its three academic programmes: the Primary Years Programme (PYP), the Middle Years Programme (MYP) or the Diploma Programme (and in addition the IB Career-related Certificate). Candidate status gives no guarantee that authorization will be granted.