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Accelerated Summer Online (ASO)

Grades 6 - 12

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Applications Closed


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Asynchronous - Flexible enrollment period

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May 13 - August 17

We’re no longer accepting applications for our ASO program this summer. Our Fall Online Honors and Advanced Placement® courses will begin September 1.  


Tuition (1 Credit): $765
Tuition (2 Credits): $1,245

Financial aid available for qualified students.

Tuition increases by $25 after the Early Application Tuition Discount Deadline. See the Fees information below for details.

Spend Your Summer Getting Ahead

CTD’s Online ASO program is an excellent option for highly motivated students seeking summer opportunities for acceleration. Courses at the Honors and AP® levels are available within the ASO program.

Why Choose Online ASO Courses?

ASO courses provide summer opportunities that allow students to accelerate course work and have a more balanced school year. Curriculum is designed for the online classroom with the bright learner in mind.

Benefits Include:

  • Courses specifically designed to compact 1 or 2 semesters of curriculum effectively and efficiently
  • Summer scheduling flexibility that allows students to take hard-to-schedule electives
  • 1 and 2 credit courses with potential for high school credit and further course acceleration
  • Preparation for success on AP® exams (AP® courses only)

In addition to ASO courses, CTD offers a diverse range of online program options; view a full list here.

UPDATE JUNE 2021: Our 2021 ASO session is now closed for applications, however, session three of our synchronous summer courses in the Spectrum (grades 6 - 8) and Equinox (grades 9 - 12) programs are still available. View a full list of all available courses on our Explore Courses page.

Application Process

Accelerated Summer Online (ASO) welcomes applications from Pre-qualified applicants as well as New Scores and Portfolio applicants. Before beginning the online application, determine which type of applicant you are based on the descriptions below.

Applications are submitted through MyCTD. Applicants are encouraged to apply early; many courses begin to fill by mid-March. Applications are reviewed in the order in which they are completed. Incomplete applications do not "hold a spot" in the desired course. Once you have made a payment and submitted the application you will receive an email with further instructions. You will then be able to return to the application and select View Application Details to upload any necessary documents and to get the teacher recommendation link, if necessary.

Pre-qualified Review Applicant

You are a pre-qualified review applicant if you are in grade 6 through grade 12 and you meet both of the following criteria: 

  • You have successfully completed a CTD course through the Summer Program or Online Program at the Indigo Tier within the previous twenty-four months. 
  • You are now applying for an Accelerated Summer Option course with the same qualifying subject area (Verbal, Math, or Science) as a CTD course you previously completed.

New Scores Applicant
You are a new scores applicant if you are in grade 6 through grade 12 and you meet either one of the following criteria:

  • You have not attended any CTD program for the past two years and you have qualifying test scores (Verbal, Math, or Science) for your desired course that are no more than two years old.
  • You have previously attended a course with the Summer Program or Online Program, but you are now applying for a course with a different qualifying subject area (Verbal, Math, or Science) and you have qualifying test scores. 

New Portfolio Applicant

You are a portfolio applicant if you are in grade 6 through grade 12 and you do not have qualifying test scores because you have either:

  • never taken an above-grade-level test, OR
  • taken this type of test but not achieved a qualifying score.

An Admission Portfolio includes the following documents:

  • Required: one teacher recommendation form (available once you have submitted your application) indicating that the student is performing 1½ to 2 years above grade level in the subject area of the course to which the student is applying; 
  • Required: most recent school report card indicating exceptional performance in the subject area of the course to which the student is applying; 
  • If available: most recent standardized testing report (e.g. NWEA/MAP) or results of a state grade-level assessment.

Please note that students may apply to Accelerated Summer Option courses based on the grade they will be entering in the fall.

Because applications are accepted on a continuous basis, courses that are listed as available may close before a student's application is complete and comes up for review. We strongly suggest listing second and third choice courses on applications. Applications are processed and reviewed by Admissions staff once all necessary documentation has been provided through the applicant's MyCTD account. 

It can take up to a week for our staff to review newly submitted applications and any documentation provided to complete an application later. Until our staff has verified the documents, submissions will not be reflected in what you see in MyCTD. We kindly ask you to not call nor e-mail our office to confirm receipt of documentation or application items within a week of submitting them.

It may take 2 to 4 weeks for an admissions decision to be made once the application is complete.  You will receive an email once an admissions decision has been made.

Important Dates

The enrollment period for the ASO session is May 13 - June 15. To get the maximum time in the course, we recommend submitting completed applications by May 7 in order to be enrolled by May 13. Students with complete applications by May 25 will have course access on June 1. Applications must be submitted and completed by June 10 in order to begin the course on June 15, the last possible start date for the session. The end date for all ASO students is August 17.


To qualify for Indigo Tier Accelerated Summer Option Courses, students must be in grade 6 through 12 and must also provide one of the following:

  • Qualifying score on an (Above-Grade-Level Assessment) in the required qualifying subject area (Verbal, Math, or Science) for the desired course. Student may use PSATTM 8/9, ACT® or SAT® results taken in grades 6, 7, 8, or 9. Qualifying test scores are available in the course descriptions accessible via the Explore Courses tool.
  • Students in grade 10 or 11 may use on-level ACT or SAT test results. Qualifying test scores are available in the course descriptions accessible via the Explore Courses tool.
  • Successful past completion of a CTD course, with the same qualifying subject area (Verbal, Math, or Science)  at the Indigo Tier within the past two years.
  • Submission of a portfolio application, consisting of a teacher recommendation and the student’s most recent report card demonstrating that the student is performing exceptionally well in the qualifying subject area. 
  • Students from India, UAE, Kuwait or Singapore who have tested with ASSET Talent Search may be able to apply as new students with qualifying test scores.

Prerequisites and Graded Writing Sample

Many courses require additional prerequisites for admission. Any prerequisites are included the course description. Any student applying to a course with a prerequisite must submit documentation showing the prerequisite has been met unless CTD already has such information from previous applications, or if the prerequisite has been met via a CTD course.

Graded writing samples are required for most English/Language Arts classes. Evidence that the writing sample has been assessed for academic purposes can be provided on the writing sample itself or by submitting an accompanying rubric or other feedback that is clearly tied to the writing sample. Providing an ungraded writing sample will result in a delay of the application being deemed complete and may cause an applicant to miss out on a class that fills to capacity.

See Eligibility for more details.

English Language Proficiency

Because courses are taught in English, test scores are used to assess proficiency and assist in course placement. TOEFL (or TOEFL Jr. for grades 4-8) or IELTS scores are required for students for whom English is not the first language and who do not have PSAT, I-Excel, SAT, ACT, ASSET, or PreACT scores.

Requests for Grade Advancement/Acceleration

CTD course content is advanced or grade-level accelerated, as reflected in course descriptions and the standard admission requirements. Though course content is advanced, students can engage with intellectual peers who are also age- or grade-level peers. Therefore, most students should apply for courses aligned to the grade-level in which they are currently enrolled. Still, for some students demonstrating a need for an even higher level of instruction than CTD’s advanced and accelerated courses already provide, further acceleration may be an option. Visit the Requesting an Accelerated Placement web page for more information about the process, timeline, and required materials.

Fees, Withdrawals, and Financial Aid


Early application tuition discount through MAY 3, 2021
  • $765 One-credit courses
  • $765 AP® one-credit courses
  • $1,245 Two-credit courses
  • $1,245 AP® Two-credit courses
Tuition for applications submitted after MAY 3, 2021
  • $790 One-credit courses
  • $815 AP® one-credit courses
  • $1,270 Two-credit courses
  • $1,295 AP® two-credit courses


Financial Aid

CTD offers need-based financial aid awarded as requests are received. Families are encouraged to apply early because the amount of aid available is limited. Please see the Financial Aid page for details. 

  • The deadline to complete a financial aid application for Accelerated Summer Options programs is May 31. However, our financial aid may be fully dispersed before the deadline.
  • You will receive the FACTS application link in your application confirmation email once the $60 dollar tuition deposit is paid and the application is submitted.
  • It is imperative that you complete the financial aid application as soon as possible as it may take FACTS up to ten days to process your information.
  • If you previously completed a FACTS application for the 2019-2020 academic year for CTD, you must still attach the 2020-2021 FACTS application to your FACTS account. You will be able to link your FACTS account to this new FACTS information. You may need to update financial information.
  • If you experience difficulties with the FACTS process please call the FACTS helpline at 866/412-4637.
Course Environment

The summer session runs 9-13 weeks in length, depending on the student’s enrollment date in the course. Students in ASO courses should expect to spend 8-15 hours per week (for 1-semester courses) or 15-25 hours per week (for 2-semester courses) engaged in rigorous, independent course work, guided by an instructor.

Students have flexibility in terms of when they complete course work, and instructors provide individualized feedback to help students stay on track with course material. Because of the intensive nature of ASO courses, families of ASO students are encouraged to keep vacation, camp, and other summer activities in mind as they select courses.

A pacing guide provided at the start of each course should be reviewed by students and families, and families should help ensure sufficient time for course work within a student’s summer schedule.

Students who have the most success in ASO courses are active, independent learners who take initiative, have strong communication and organization skills, and have a desire to learn in an online platform. A student’s ability to work at an accelerated pace, manage their time, meet deadlines, and adjust their efforts accordingly is imperative.

Course Access and Orientation

Schoology, the learning management system used by CTD, is a user-friendly platform designed specifically for K-12 online learners, and is COPPA compliant.

Students will receive login information to Schoology via e-mail 12-24 hours before the course start date.

With their login information, students will receive information about a live, online orientation for all new Online Program students. (Returning students are also welcome to repeat the orientation.) The orientation will be recorded for students to view at a later time, if desired.

Access to course material, including instructor contact information, syllabi, and assignments, begins on the course start date.

Course Textbooks

The course acceptance notification email will contain a link to CTD’s online bookstore, where students can find textbook requirements for their course.

Textbooks can be purchased from CTD’s online bookstore, or from another vendor of choice. The use of a textbook varies by course, and not all online courses require one, though most online honors and AP® courses do require textbooks.

Textbook and supply costs (i.e. lab kits, if applicable) are not included in course fees.

Course Pacing and Extensions

Course Pacing

The summer session runs 9-13 weeks in length, depending on the student’s enrollment date in the course.

Students in ASO courses should expect to spend 8-12 hours per week (for 1-semester courses) or 15-25 hours per week (for 2-semester courses) engaged in rigorous, independent course work, guided by an instructor.

A pacing guide provided at the start of each course should be reviewed by students and families, and families should help ensure sufficient time for course work within a student’s summer schedule.


Students in Online Honors, Online AP®, or Online ASO classes may request up to three, 1-month extensions from their instructor, and are considered on an individual basis. To qualify for an extension, students need to have made significant progress towards completion of course work. (At a minimum, students need to have finished more than half of the course work to submit a request for extension.) Additionally, a student must have demonstrated the desire and capacity to complete the course in order for an extension request to be approved.

Course extensions begin on the course end date, and are consecutive, and are not able to be delayed. A $100 fee is assessed for each month of an extension.

Requests for course extensions should be directed to the course instructor in writing and must be approved by the course instructor and CTD.

Credit, Evaluations, and Transcripts


For each successfully completed semester (with a grade of C- or better), students will receive one high school credit through CTD.

As an accredited institution, CTD issues credits to students successfully completing Online Honors, Online ASO, and Online AP® courses. However, acceptance of credit from CTD is a local school decision. Students interested in pursuing credit should discuss their school’s policy concerning credit from outside institutions with an academic counselor or school administrator before applying.


Due to the compacted nature of the program, evaluations are not available for Online ASO courses.


Unofficial transcripts can be generated via MyCTD (select “Tools” and then “Transcript” within the menu bar) upon completion of the course and final approval of the student’s evaluation. We encourage students to download their own transcript and ask that schools be flexible given current circumstances.

If an official transcript is required, please contact CTD’s Admissions and Advising office to request an official transcript be emailed to the student’s school. Additional official transcripts can be requested via the Official Transcript Request Form.

Technical Requirements

All course work and communication (including instructor contact information, the course syllabus, and assignments) take place within the Schoology course site. Schoology can be accessed on a desktop or laptop computer, or with the Schoology mobile app for iOS or Android tablets and phones. While tablets may be sufficient for most course work, some web tools and/or websites may require the use of a computer.

Students need access to a stable internet connection and updated web browser.

Participation in “live” course activities or multimedia recordings may require a computer web camera, microphone or headset.

Frequently Asked Questions

See Frequently Asked Questions about Online Program courses.

Contact Us

Upcoming Sessions

Check back later this year for Summer 2022 course offerings!

Program Forms and Resources

Official Transcript Request Form

“I loved the fact that my course was more independent and free-flowing. I could work a week ahead, go to a camp or something I might have, and come back and still be on time.” – Online ASO Student

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