Only in a cursory manner.
The fact is that it takes too much time.
First off, you have to read the books the kids are using. That alone takes about as much time as the kids spend in school each day.
Then you have to get hold of the materials the teachers supplement their lessons with. A lot of that isn't planned very far in advance, so you have to stay on it all the time. Plus the teachers don't want to take the time & effort to get it to you even if it is innocent. If it's scandalous or at all controversial, to the left or right, they are loathe to give it to you and it would take a court order to get it.
The only group I'm aware of that has even a slight clue as to what's going on is Value Voters. They were able to get a few districts to comment on the presence of "Comprehensive Sexual Education" programs in their schools, promoted by Planned Parenthood.
