Is it ok to share a TPT purchase or even a free download from TPT with other teachers?
It depends. Were multiple licenses purchased? Was the actual file shared or just the url to that specific file's location on TpT?
Is it legal to copy and paste any image you find on the internet?
No
Is it legal to save/download any image you find in a Google image search?
It depends. Were the Usage Rights filtered to show only those labeled for reuse?
Is it legal to download YouTube videos?
No. It's against YouTube's policy.
Is it legal to use a song you have purchased (ie. from Itunes) as background for a slideshow or movie you make?
It depends. Are you using a small portion or the entire song?
Is it ok to watch entire movies in your class?
It depends. Can it's viewing be justified as part of the curriculum?
Can a teacher read-aloud a book or chapters from a novel during a Zoom meeting or a Facebook Live event with her students?
It's not a simple yes or no answer. Click here to read a blog article from EdSurge to help answer this question.