OSN-K 2027 Biology Preparation Class (senior high school)
Online, Saturdays and Sundays. Starts 21 November 2026. 3 class options open.
Facilities
- Live classes
- Class recordings
- Class notes
- Regular evaluation
- Learning report
- Discussion forum (24/7)
- Mentoring
Choose a class, then register through the form in its section.
Basic Class
For you if you want to master the core concepts that lay the foundation for advanced material.
- Schedule
- 07:30–11:15 WIB
- Length
- 40 hours
Syllabus
Most of the material comes from Campbell, interspersed with OSN-K-level practice questions, plus case studies from journal articles.
Intermediate-Advanced Class
For you if you have done basic training before or at least reached OSN-P. Focuses on key material for advanced case studies.
- Schedule
- 13:00–16:30 WIB
- Length
- 35 hours
Syllabus
Material from Campbell and more advanced books, such as Molecular Biology of the Cell (Alberts), Animal Physiology (Sherwood), Biochemistry (Lehninger) and Genetics (Hartwell), along with advanced journals and harder OSN-K practice questions.
Both classes combined
Basic and Intermediate-Advanced together, from the foundations to advanced topics.
- Schedule
- morning and afternoon
- Length
- 75 hours
Discounts
- Both classes
- Rp200.000
- Take every class in this batch together.
- Group of 3+
- Rp125.000
- Off for each student, once even if you take both classes.
- Invite friends, from your own school or another. One representative fills in the Google Form for every member of the group.
The group and combined-class discounts can be combined.
You choose a discount in the registration form, and an admin checks it.
Best price
Rp637.500
per class
Take both classes and register as a group of at least 3.
Questions about this class
Can I join after the class has started?
Yes. You can pay until the class period ends at the full price, and you can still watch the recordings of earlier meetings once your payment is confirmed.
Should I choose the Basic or the Intermediate-Advanced class?
Basic is for building a foundation in the core concepts. Intermediate-Advanced is for those who have taken basic training before or have at least passed OSN-P. You can also take both with the combined-class discount.