florida more anger over masks. >> your job is to educate my child. that means reading, writing, math, a game of dodgeball at p.e. would be great. but not a mask. not a medical decision. it is not your decision to put a medical device on my child. >> it seems like a no-brainer. a universal mask mandate is the minimum that we can do to keep our children safe. >> reporter: after heated debate the duvall county school board voted in favor of a 90-day mask mandate for all students. only those with a note from a licensed health care provider can opt out. in northern california the mask debate prompted a 49-year-old father to allegedly assault a teacher in his child's school. he's now charged with three misdemeanors. >> there's a part of me that's not surprised and there's a part of me that's just completely shocked. but to everyone's defense i just think emotions are really high right now. >> reporter: it happened at sutter creek elementary on the first day of school. the district has a mask mandate but parents can opt out with a doctor's note.