Open Educational Resources (OER)
Open Educational Resources are free learning and teaching materials provided on the web. They have an open license (e.g., Creative Commons), which allows anyone to use and benefit from these resources.
mLearning means mobile learning, which comes from "Mobile Telephone". You can access the learning material over your mobile phone anywhere, which makes learning mobile.
If there are used images or videos for communication, it is visual communication. Visual Communication is almost used everywhere like on television, posts on social media (Instagram, Facebook), advertisement.
Student Response System (SRS)
With Student Response Systems (SRS) it is possible to get live student feedback in the classroom. Questions and answers can usually be asked and given anonymously, which increases participation and engagement. An SRS may be used for any grade, including university.