You should find this help page will answer most of your questions about transferring your data from one ipad to another:
https://support.apple.com/en-us/HT201269
The linked page describes multiple methods to transfer data when setting-up a new iPad.
Some music and video content, if downloaded from sources such iTunes - or transferred from your PC or Mac using the iTunes program, will not be “transferred” - but must instead be downloaded again. This serves two purposes, the first being that it is assumed that the original material still exists for future download - the second being that any DRM (Digital Rights Management) protections are preserved, as otherwise an un-authorised copy may be brought into existence.
If for some reason you discover that non-DRM content isn’t automatically transferred, after transfer you could try manual copy (perhaps using AirDrop - or via a Cloud storage service) from your old to new iPad.
Before finally passing your old iPad to your daughter, you should follow this procedure to properly prepare the old iPad for re-use:
https://support.apple.com/en-gb/HT201351
I hope this information proves to be helpful.