I have been going through the Mathworks web site looking for introductory videos for students new to Matlab. Here is a list that I will probably use for my students to give them their first exposure to MATLAB. Sarah Zaranek has a couple good introductory videos. My browser keeps defaulting the Australia website. You might need to delete the "au" in front of Mathworks in the URLs.
Working with Arrays in MATLAB
Introducing MATLAB Fundamental Classes (Data Types)
Introducing Structures and Cell Arrays
Importing Spreadsheets into MATLAB
Writing a MATLAB Program
Publishing Code from the Editor
The MATLAB Fundamentals Academic Tutorial, through MATLAB Academy and Onrmap seems very applicable for introductory students to work through, as Jackie pointed out, on their own time. Students work through examples of historical gas prices, marriage statistics and an acoustic file of a blue whale call (good for my marine science/fisheries students). Students work with these data sets and analyse, plot and visualize the data. Not necessarily Geoscience related, but a good general introduction. Completion of the Onramp leads to other tutorials, which cost money.
Also, Cody seems to be a good environment to challenge your students with a quick quiz. I will attempt to use this somehow next term and will report back here. Through Cody students will be able to quickly assess their capability and progress against others in the class. The only drawback is that it does not appear to be limited to your class, or maybe there is way to personalize/restrict groups within Cody (Lisa? Loren?)? This might be a good place to start a Geoscience section of small exercises/quizzes for the global Geoscience community?
There were also several webinars, mostly engineering related. I did not come across one Geoscience related webinar in English. There appeared to be a good one in German. Can't say that I have thorough examined all of the resources on the website, though, and will continue to post things here as I find them.
I hope this is at least a start.