Trace the claim, quote, or media back to the source, so you can see it in its original context and get a sense if the version you saw was accurately presented.
Consider this tweet
John is tweeting his takeaway from this article on sunscreen (or at least his takeaway from the article headline).
Take a look at the tweet below:
You see multiple sources here, but what's the original research source? Click through until you find the original report.
Once you find the original report answer two questions in your fact-checking notebook:
"galluprights.” YouTube, uploaded by d'Alzon Library, 18 June 2019, https://youtu.be/jVuo4KJ-5LE. 2:51 minutes
"Evaluating Photos & Videos: Crash Course Navigating Digital Information #7.” YouTube, uploaded by d'Alzon Library, 18 June 2019, https://youtu.be/p7uvqb8fcdA. 13:18 minutes, can skip to 6:00 for an example.