for motivated students taking AP Chemistry concurrently in the fall to prepare for Local 2026 (diagnostic test or email chen@dcho.us for consultation)
covers Stoichiometry, Atomic Structures, Periodicity, Molecular Structures, Bonding, IMFs, Gases in the level beyond AP
8:30-10 PM ET on Saturday
8 weekly sessions, late-Aug to mid-Oct
first session on Aug 23
$399 for all live sessions, lecture notes, and problem sets in 2025-26
for students who scored 35+ in Local 2025 or 4/5 in AP Exam to prepare for National 2026 (diagnostic test or email chen@dcho.us for consultation)
covers Advanced topics in Periodicity & Bonding, Coordination Chemistry, Reactions, etc. in the level of National Part I Exam
8:30-10 PM ET on Sunday
8 weekly sessions, late-Aug to mid-Oct
first session on Aug 24
$449 for all live sessions, lecture notes, and problem sets in 2025-26
for students who scored 35+ in the 2025 National, aiming for Honor/High Honor/Camp. (diagnostic test or email chen@dcho.us for consultation)
covers Advanced Reactions, Coordination Chemistry, Analytical Chemistry, etc. in the level of National Part II Exam and beyond
8:30-10 PM ET on Friday
8 weekly sessions, late-Aug to mid-Oct
first session on Aug 22
$499 for all live sessions, lecture notes, and problem sets in 2025-26
Congratulations to Alex D, Jonathan H, Hyunjun K, Vishnu M on advancing to Camp, to Jai D, Tintin D, Carson G, Philip K, Rohan V, Forest Y, Zhijia Z on winning High Honor (Top 50), and to Daniel C, Justin D, David G, Kevin H, Ayden H*, Clare L, Celina L, Margaret L, Emma L, Sanjay O, Lishan P on winning Honor (Top190)
Choose the path that fits you best:
1. Take Live Lessons with Dr. Chen – weekly class from late Aug to early Apr
2. Prefer to begin right away? – Self-paced
Purchase recordings and class materials for Level 2, 3, or 4 and Summer Organic Chemistry in 2024-25 and start learning at your own pace!