Dedicated to Learning (D2L) is a private, non-profit organization that offers tuition-based educational programs. The information below covers the program offerings on the Diamond Bar High campus.
The information brochure for the 2025 Summer School program held on the Diamond Bar Campus will be posted on this webpage on February 10, 2025.
Summer School Schedule:
June 09, 2025 - July 17, 2025
Time: 7:30am - 1:00pm
Week 1: June 9, 10, 11, 12, 13 (Monday - Friday)
Week 2: June 16, 17, 18 (Mon, Tues, Wed) / No Classes Thurs. & Fri.
Week 3: June 23-26 (Monday - Thursday ) / End of 1st Semester
Week 4: June 30 - July 3 (Monday - Thursday)
Week 5: July 7 - 10 (Monday - Thursday)
Week 6: July 14-17 ( Monday - Thursday) / End of 2nd Semester
Please note the adjusted schedule for Weeks 1 & 2 due to observance of the Juneteenth Holiday.
Summer School Schedule:
June 09, 2025 - July 17, 2025
Time: 7:30am - 1:00pm
Week 1: June 9, 10, 11, 12, 13 (Monday - Friday)
Week 2: June 16, 17, 18 (Mon, Tues, Wed) / No Classes Thurs. & Fri.
Week 3: June 23-26 (Monday - Thursday ) / End of 1st Semester
Week 4: June 30 - July 3 (Monday - Thursday)
Week 5: July 7 - 10 (Monday - Thursday)
Week 6: July 14-17 ( Monday - Thursday) / End of 2nd Semester
Please note the adjusted schedule for Weeks 1 & 2 due to observance of the Juneteenth Holiday.
The Final Registration Window is now Closed.
Confirmation lists are now available below.
Students seeking to enroll in summer may attempt to due so in the DBHS Theater at 7:30am on June 9.
Confirmation lists are now available below.
Students seeking to enroll in summer may attempt to due so in the DBHS Theater at 7:30am on June 9.
Click on the PDFs below to check Confirmation Lists.

algebra_2_-accepted_list_-_3-30-2025.pdf | |
File Size: | 90 kb |
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biology_-accepted_list_-_3-30-2025.pdf | |
File Size: | 117 kb |
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chemistry_-accepted_list_-_3-30-2025.pdf | |
File Size: | 112 kb |
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digital_video_-accepted_list_-_3-30-2025.pdf | |
File Size: | 86 kb |
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geometry_-accepted_list_-_3-30-2025.pdf | |
File Size: | 106 kb |
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health_and_career_explorations-combo_-_3-30-2025.pdf | |
File Size: | 100 kb |
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innovations_in_tech_-accepted_list_-_3-30-2025.pdf | |
File Size: | 94 kb |
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world_history_-accepted_list_-_3-30-2025.pdf | |
File Size: | 102 kb |
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online_ethnic_studies_-_accepted_list_-_3-30-2025.pdf | |
File Size: | 141 kb |
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online_health-_accepted_list_-_3-30-2025.pdf | |
File Size: | 156 kb |
File Type: |
Projected Courses for the 2025 Summer Session include:
Geometry
Algebra 2
Biology
Chemistry
World History
Innovations in Technology
Health
Ethnic Studies
Digital Video
Online Courses will include:
Health
Ethnic Studies
Click the Links Below to Download our Information Brochure and Course Offerings Handouts
Geometry
Algebra 2
Biology
Chemistry
World History
Innovations in Technology
Health
Ethnic Studies
Digital Video
Online Courses will include:
Health
Ethnic Studies
Click the Links Below to Download our Information Brochure and Course Offerings Handouts
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CANCEL COURSE ENROLLMENT
D2L Cancellation Policy
If Dedicated to Learning cannot provide you with a seat in a course, a full refund will be provided. If you choose to cancel your registration, for any reason, your tuition, minus a $100 cancellation fee, will be refunded, ONLY, if the request is made prior to 11:59pm on Friday, April 25, 2025. All refund requests must be made using the course enrollment cancellation form found D2L website (See Link Below). No refunds will be granted for ANY reason after 11:59pm on Friday, April 25, 2025.
CLICK HERE TO CANCEL YOUR REGISTRATION
If Dedicated to Learning cannot provide you with a seat in a course, a full refund will be provided. If you choose to cancel your registration, for any reason, your tuition, minus a $100 cancellation fee, will be refunded, ONLY, if the request is made prior to 11:59pm on Friday, April 25, 2025. All refund requests must be made using the course enrollment cancellation form found D2L website (See Link Below). No refunds will be granted for ANY reason after 11:59pm on Friday, April 25, 2025.
CLICK HERE TO CANCEL YOUR REGISTRATION
CUSTOMER SERVICE INFO
Customer service representatives will be off duty during Spring Break, April 12 - April 21. Email messages will not be reviewed until after that time.
Please contact us at:
Email: [email protected]
Dedicated to Learning representatives will contact you within 48 hours. Please include a phone number in your message, so we can connect with you by phone should you need more specific guidance. Please note that D2L offices are closed on weekends.
Customer service representatives will be off duty during Spring Break, April 12 - April 21. Email messages will not be reviewed until after that time.
Please contact us at:
Email: [email protected]
Dedicated to Learning representatives will contact you within 48 hours. Please include a phone number in your message, so we can connect with you by phone should you need more specific guidance. Please note that D2L offices are closed on weekends.