David Shultz and Colleagues are great teachers!

Muy bueno el material y excelente explicaciones

The tutor was good.Examples shown was amazing.

very informative and I had a great experience

It was very informative. Thank you very much

it was very helpfull online course . tanks

A very informative course. about our planet

Informative and interesting. Well planned.

Great teachers and wonderfull information.

muy buen curso! completo y claro

Very educational and interesting

Fantastic classes, learned a ton

The course was excellent!

Excellent, thank you.

¡Excelente curso!

very good course

N​ice Job!!!!

Thank you.

Worth it!

good

I learnt a lot and managed to form a more coherent idea of the Earth's history and processes. The videos were good, helpful and easy to follow. The Build Your Own Earth assignment was interesting and useful, but the simulations did not do what I was hoping. I thought I was going to play around with the parameters to see how the addition of different life forms might affect the composition of land, sea and air. When I select Land > Surface vegetation type there is always grasslands, even in the Ancient simulations before grasses had evolved, so this isn't a tool for simulating the evolving ecosystems on Earth. Despite this limitation I discovered many things by playing around with it.

A very interesting course, it gives you very good information and examples, however, in the tests there are some questions that given the right responses are graded as incorrect. For instance, the difference in temperature between seasons in a continental environment should be greater that the difference in an oceanic environment; the jet stream always blows from west to east in both hemispheres and some of the questions on the simulation have the same problem (the responses that are not right are usually the ones that have the option to check several answers when clearly there should be just one). Given that, a very good course overall.

A very thorough course which covered a lot of ground at some depth. I found much of the chemistry and physics was quite hard - I discovered where the gaps in my knowledge were! Each module took longer to complete than I had expected but it has taught me a lot and I am glad I stuck with it. I think it would have been better to split the modules into shorter sections and have the course to run for longer with more time for reflection between modules.

The course is very well organised and tought, if I would point out something that would make it better I would only say that the update of the material for the current year (it seens to me it has been 5 years since the release). Everything else is really nice, I really liked the Google Earth Tour ideas and the classes with invited professors too!

Etant un élève de la série ES, l'introduction m'avait quelque peu rassuré avant de pouvoir me lancer dans ce cours; toutefois il s'avère qu'il faut tout de meme maitriser des notions assez avancées pour mener à bien le cours. Néanmoins j'ai pu y apprendre beaucoup de choses et les quiz sont assez intéressants et divertissants

Merci pour ce cours !