The video lectures taught you how to pass the tests and didn't really teach anything well.

Great review for those who need refreshers and good for newcomers to chemistry!

Good explanations, actiivities and experimental examples.

I gained a lot of knowledge with this course.

It's a very good course and

clear teaching!

Well explained course. Thank you.

Great course for concept clearance

clear concept explanation

I rather enjoyed it. :-)

понятный и доступный

a good introduction

I loved this course

Nice course

Cool class!

Good work

good

Good

I've found easier tutorials on YouTube for certain subjects but I really enjoyed the demos!

Informative and helpful for beginners as well as highschoolers

Very long videos

The lectures were difficult to follow, and the material on the tests were not covered well.

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.

It say introduction, but it is more advanced that it seems