This post has a great set of links for learning.
Please access http://www.ptcu.com - this is the official PTC University learning platform - lots of free tutorials, courses and materials for all PTC products.
Let us know if you have additional questions! Enjoy your learning journey and we are here to help you with any requests!
I have created a YouTube channel to answer questions of my students following the CAD course.
Perhaps this can help you.