Learner Reviews & Feedback for Introduction to Chemistry: Reactions and Ratios by Duke University
About the Course
Top reviews
RG
Aug 20, 2020
Thank you Professor Dorian A. Canelas! It made me much more easier to understand the basic principles of chemistry and it builds me a lot of confidence in answering some of the problems in chemistry.
M
Sep 5, 2023
The teaching method of Dr. Dorian canelas was very simple and impressive. I have learnt a lot and much enjoyed during the lecture and Practical demonstration. I recommend it to all chemistry learner.
326 - 328 of 328 Reviews for Introduction to Chemistry: Reactions and Ratios
By Armon A
•Jul 25, 2021
The lectures were difficult to follow, and the material on the tests were not covered well.
By rverker
•Feb 2, 2025
It's really intolerable these MOOCs like this one that don't offer PDF support. The videos skim over the subjects, are messy and don't give enough examples. The trainer scribbles on the slides, making them illegible. The quizzes are all-or-nothing (you retake everything if you don't reach the threshold) and the advanced quizzes are ridiculous and useless. What's more, they're not corrected, so it's hard to understand your mistakes and improve. On the other hand, you can take them 15 million times if you have the patience.
By Nicolás C M
•Aug 15, 2020
It say introduction, but it is more advanced that it seems