I’m sorry, but if you haven’t had any discussion with your child about the basics of reproduction by the age of 10, it’s you that have the problem, not a school system that starts teaching sex ed that grade level, and not the school’s library carrying a educational book explaining the things you haven’t gotten around to. We aren’t back in my mother’s day when by the time she started her cycle, she thought she was bleeding to death. A little info is helpful here, you think? And the section on masturbating? 10 is too early to discuss it? Since kids are doing it from a very early age, maybe it would be good for them to know exactly what and why they do so, without wild freaking out judgmental parents demanding permission slips to read what kids by that age are hearing whispered among their friends.
Sigh, here’s a link to another book on the chopping block in Seattle.