Dr. Chen is proud to have coached 4 Campers and 19 High Honors/Honors in USNCO 2025!

Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad

Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad
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  • More
    • Home
    • About
    • USNCO
      • General Overview
      • FAQs
      • Learning Objectives
      • DCC
      • Annotated Solutions
      • Misconception
      • Laboratory
      • Study Camp
    • Classes
      • Introduction
      • Registration
      • Placement
      • Testimony
      • National Preps
      • Open Classes
      • Lecture Notes
    • Resources
      • APChem
      • Textbooks
      • IChO
      • CChO
      • Mendeleev
      • VChO
      • WUCT&BCT
      • Other Sites
    • Consultation
      • Newsletters
      • Email
      • Discord
      • WeChat 微信
  • Home
  • About
  • USNCO
    • General Overview
    • FAQs
    • Learning Objectives
    • DCC
    • Annotated Solutions
    • Misconception
    • Laboratory
    • Study Camp
  • Classes
    • Introduction
    • Registration
    • Placement
    • Testimony
    • National Preps
    • Open Classes
    • Lecture Notes
  • Resources
    • APChem
    • Textbooks
    • IChO
    • CChO
    • Mendeleev
    • VChO
    • WUCT&BCT
    • Other Sites
  • Consultation
    • Newsletters
    • Email
    • Discord
    • WeChat 微信

Feedback of the Prep Class for National and Camp 2019

Online class with recordings, over 20 students from NJ, NY, PA, CA, MA, etc., 8 two-hour sessions!

  • I learned a lot in this class. It was very helpful to me and you showed me new strategies and reasoning, which I very much appreciate.
  • This camp is a great way to not only help you prepare for the USNCO exam but also just to help advance your chemistry knowledge overall. Dr. Chen is a great teacher and you are able to learn a lot from him. Highly recommend!
  • I don't know what to say. It's just very good.
  • The time and material Dr. Chen provided made this camp worthwhile. He gives good condensed handouts and is always answering questions. Dr. Chen even offered an entire extra class to cover more topics and address questions.
  • The annotations after the class were helpful because it allowed me to find out what I didn't know and also to finish notes that weren't done in class.
  • The handouts are extremely well-thought out, and Dr. Chen explained every concept clearly, appealing to experts and those with working knowledge alike. Thanks!
  • The camp was extremely helpful in helping to fill some holes in my knowledge. Having so many practice problems to accompany each topic helped me to really learn the material being taught. The handouts and video instruction were great!
  • This class was very helpful in explaining chemistry efficiently, and I learned a lot of information not taught in AP Chemistry.
  • The camp was a very great experience in overall chemistry knowledge but more importantly, the descriptive chemistry knowledge I learned from this camp is invaluable! Dr. Chen systematically organized a lot of the reactions/facts into patterns/groups and gave REASONS as to why they occur/exist, making it very easy for us students to LEARN instead of blindly memorize. Fantastic camp and teacher!
  • It was a pretty good camp; however, I feel like it would have been better if the pace was slower. The handouts though were awesome (even though as of right now I don't completely understand all of it); I am confident these will be helpful for next year's preparation as well. thank you!
  • Dr. Chen's class helped me develop a stronger chemical intuition and more experience, both of which are valuable to my chemistry olympiad experience.
  • Dr. Chen explains contents in great depth.
  • Although this camp was fast-paced, it was super fun and very efficient!
  • Engaging live sessions with ample auxiliary support through Gmail and Google Classroom. Sessions were informative and went in-depth into more complicated topics. All in all, the class was a good supplement for my preparation.
  • It was really helpful and I learned a lot
  • I did not know too many advanced topics in chemistry initially, so I did not have the capacity to improve much. However, I am happy that I have these handouts as reading materials, and I will certainly improve as I do more reading and investigate the materials and content of the handouts in further detail.
  • Very informational and detailed intuitive explanations; features a lot of additional and carefully curated material for USNCO
  • It was a nice class, I learned a lot about organic/descriptive chem.

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Interested in Chemistry Olympiad Classes for 25–26?

Choose the path that fits you best:

  1. Self-Study + Diagnostic
    Study Honors or AP Chemistry on your own, then take Dr. Chen’s diagnostic tests to determine fall placement. Recommended textbooks
  2. Summer Class with Dr. Chen
    Take an intensive AP Chemistry+ or Organic Chemistry Class this summer with Dr. Chen to prepare for Level 2, 3, or 4 Olympiad training in the fall.
  3. Start Now – Self-Paced
    Prefer to begin right away? Purchase recordings and materials for Level 2, 3, or 4 from 2024-25 and start learning at your own pace!

Sign up for Dr. Chen's Summer Class for AP Chemistry+ or Organic Chemistry