Physical Ed for K-5 in Florida

I guess I missed this story in the news when it came out on November 17. The Christian Science Monitor. com is reporting that in Florida "schools must comply with a state law requiring children in kindergarten through fifth grade to receive 30 minutes of continuous physical education every day." I keep thinking that with a bit of imagination, physical fitness activities can be incorporated in each class. Also, I'm wondering how are parents being held accountable for ensuring children are active when away for school since the fight against childhood obesity should start at home not school.