My best friend's oldest daughter is in (I believe) 4th grade and has just discovered the Beatles. I find this thrilling because she did it all on her own. The Beatles aren't staples in her household the way I have made sure they are in my family. (My niece learned the words to "Eight Days a Week" at about the same time she learned "Itsy Bitsy Spider.")
The music speaks for itself. No explanation necessary. But how do you put the Lads in context? How do you explain Beatlemania?
I ordered her a copy of A Hard Day's Night. So much of the plot revolves around fleeing screaming teenage girls. I hope she isn't so distracted by the clothes and the bouffant hairstyles and the fact that the movie is in black and white that she misses how well defined each Lad's personality is and how pervasive and phenomenal Beatlemania was.
If those messages are overwhelmed, there's always the concert footage that closes the film. I can't imagine anyone not enjoying seeing the Beatles performing live.
