Language Resources for ITAs
Understanding American Slang is one of the challenges International Teaching Assistants (ITAs) in particular--and English language learners in general--may face. A. C. Kemp's Slang City is a rich resource that can familiarize you with day-to-day American slang.
A collocation is a combination of words that usually come together in speech and writing. For instance, "mistake" is usually accompanied with "make"--not "do." So one would say "I made a mistake"--not "I did a mistake." The English Club website offers plenty of resources on collocations, ways to learn them, and quizzes to test one's knowledge.
In English, if more than one adjective are used to describe a noun, that list of adjectives is never organized haphazardly. There is a rule: (determiner-> opinion-> size-> shape-> age-> color-> origin-> material-> type/purpose). Following that rule will make your speech and writing easier to understand.
YouTube Channels can be a quite helpful resource to improve one's comprehensibility. But remember that merely watching the videos will not help. Practice is key. Another effective strategy is to record and listen to your speech. Listening to one's own speech helps in detecting errors and ultimately improving comprehensibility.
Here is a link to Rachel's English YouTube Channel.
Here is a link to Elemental English YouTube Channel.
YouGlish ( http://youglish.com)
Use YouTube to improve your English pronunciation. All you have to do is type in a word that is difficult for you to pronounce, and YouGlish will give you authentic examples of how that word is spoken by real people in context. You can also sign up for daily lessons.