Recordings

Summer Organic Chemistry with Dr. Chen 2025 （Recordings）

Learn Organic Chemistry Systematically at Your Own Pace!

one week intensive (10 sessions, 15+ hours lectures) study of Organic Chemistry;
pre-requisite for Level 4 Module 3 Advanced Organic Chemistry Class;
covers the first 8 chapters of David Klein's Organic Chemistry;
18 problem sets, 1 review packet, and 1 final exam (with detailed annotations) provided;
learn organic chemistry systematically with your own pace;
discounted price of $349 for all recordings and class materials!
watch the recording of session 1 for free to see whether it fits you;
detailed information of the class;

Level 2 [Recordings] - AP Plus & USNCO Local

Module 1 (24-25 recordings available)

for motivated students taking AP Chemistry concurrently to prepare for Local 2025 (diagnostic test or email chen@dcho.us for consultation)

covers Atomic Structures, Periodicity, Molecular Structures, Bonding, IMFs/Gas in the level beyond AP

8 weekly sessions (12+ hours in total), late-Aug to mid-Oct

$249 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 1 in 2025-26

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

for motivated students taking AP Chemistry concurrently to prepare for Local 2025 (diagnostic test or email chen@dcho.us for consultation)

covers Thermochemistry, Kinetics, Chemical Equilibrium, Acids&Bases, Buffer&Titrations, etc.

8 weekly sessions (12+ hours in total), late-Oct to mid-Dec

$249 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 2 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

for motivated students taking AP Chemistry concurrently to prepare for Local 2025 (diagnostic test or email chen@dcho.us for consultation)

covers Descriptive Chemistry, Laboratory, Fundamental Orgo/Biochemistry, Electrochemistry, Thermo

8 weekly sessions (12+ hours in total), early-Jan to late-Feb

$249 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 3 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

Level 3 [Recordings] - Post-AP & USNCO National

Module 1 (24-25 recordings available)

for students who scored 40 or higher in USNCO Local 2024 or 5 in AP Exam (diagnostic test or email chen@dcho.us for consultation)

covers Advanced topics in Periodicity & Bonding, Coordination Chemistry, Reactions, etc.

8 weekly sessions (12+ hours in total), late-Aug to mid-Oct

$299 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 1 in 2025-26

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

for students who scored 40 or higher in USNCO Local 2024 or 5 in AP Exam (diagnostic test or email chen@dcho.us for consultation)

covers Integrated Chemical Principles [Kinetics, Thermodynamics, Equilibrium, Electrochemistry]

8 weekly sessions (12+ hours in total), mid-Oct to mid-Dec

$299 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 2 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

for students who scored 40 or higher in USNCO Local 2024 or 5 in AP Exam (diagnostic test or email chen@dcho.us for consultation)

covers Applications in Thermodynamics, Descriptive Chemistry/Laboratory, Advanced Organic Chemistry

8 weekly sessions (12 hours in total), early-Jan to late-Feb

$299 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 3 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

Level 4 [Recordings] - High Honor & Study Camp

Module 1 (24-25 recordings available)

for students who scored 30+ in the 2024 National Part I, aiming for High Honors/Study Camp. (diagnostic test or email chen@dcho.us for consultation)

covers Advanced Reactions, Coordination Chemistry, Analytical Chemistry, etc.

8 weekly sessions (12+ hours in total), late-Aug to mid-Oct

$349 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 1 in 2025-26

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

for students who scored 30+ in the 2024 National Part I, aiming for High Honors/Study Camp. (diagnostic test or email chen@dcho.us for consultation)

covers IChO-level Chemical Principles with an emphasis of problem solving

8 weekly sessions (12+ hours in total), mid-Oct to mid-Dec

$349 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 2 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

for students who scored 30+ in the 2024 National Part I, aiming for High Honors/Study Camp. (diagnostic test or email chen@dcho.us for consultation)

covers IChO-level Integrated Organic Chemistry with an emphasis of problem solving

8 weekly sessions (12+ hours in total), early-Jan to late-Feb

$349 (discounted) for all recorded sessions, lecture notes, and problem sets in 2024-25

Detailed Introduction to Module 3 in 2024-25

Recording of Session 1 in 2024-25

Purchase the Recordings

In-Depth, On-Demand – Learn with Dr. Chen’s Class Recordings

Want to study for the Chemistry Olympiad at your own pace and convenience? Now you can!
Get exclusive access to Dr. Chen’s full set of class recordings, organized by Level (2, 3, or 4), and now offered at a big discount. An extra $50/$100 bundle discount is offered for purchasing two/three modules together!

Each recording packet includes:

Comprehensive lecture recordings from Dr. Chen’s live sessions
All study materials, including detailed Lecture Notes
Challenging weekly homework sets with solutions
Structured by USNCO topic, progressing from fundamentals to advanced concepts

Perfect for motivated students preparing for the Local or National Exams—or anyone looking to boost their chemistry skills independently.

Start anytime, progress at your own pace, and build your mastery with the best-in-class resources.

Ready to begin? Click the "Purchase" button under each Level/Module!

Hear What Students Say about Dr. Chen's Class

Decoding of Chemistry Olympiad

Looking for flexible, on-demand learning options? Check out our latest recorded classes! With our recorded lectures and materials, you can learn at your own pace and on your own schedule.

Overview of Dr. Chen's USNCO Mentorship Program in 2024-25 (Recordings)

Summer Organic Chemistry with Dr. Chen 2025 （Recordings）

Learn Organic Chemistry Systematically at Your Own Pace!

Level 2 [Recordings] - AP Plus & USNCO Local

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Level 3 [Recordings] - Post-AP & USNCO National

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Level 4 [Recordings] - High Honor & Study Camp

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

In-Depth, On-Demand – Learn with Dr. Chen’s Class Recordings

Looking for flexible, on-demand learning options? Check out our latest recorded classes! With our recorded lectures and materials, you can learn at your own pace and on your own schedule.

Overview of Dr. Chen's USNCO Mentorship Program in 2024-25 (Recordings)

Summer Organic Chemistry with Dr. Chen 2025 （Recordings）

Learn Organic Chemistry Systematically at Your Own Pace!

Level 2 [Recordings] - AP Plus & USNCO Local

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Level 3 [Recordings] - Post-AP & USNCO National

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Level 4 [Recordings] - High Honor & Study Camp

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 2 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

Module 1 (24-25 recordings available)

Module 3 (24-25 recordings available)

In-Depth, On-Demand – Learn with Dr. Chen’s Class Recordings

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