That is a foreign website. It's not easy to go up. I recommend a good method for you.

Baidu watches Itunes, and then downloads one from Apple.

Then register an apple store account. There are many public resources in the store, not only Yale but also thousands of courses from various famous universities in Harvard.

And you can apply for an account without anything from Apple.

Just download it and watch it on the computer ~ you can also see the teaching materials inside.

I hope it can be adopted ~