This dictionary uses video and is very clear. However, it only allows 5 signs a day before requesting payment, which is not required for this class.
This dictionary uses pictures and occasionally video. It's does a great job clarifying between homonyms- words or signs that look/ sound the same but mean different things.
This dictionary also uses video and has other great information about ASL and Deaf culture.
Follow this link for class sets of flashcards for studying:
https://quizlet.com/class/5387312/