jeff atkins explains why the date was pushed up. >> many high school students were challenged because they had to finish the exams after frustration for them and the families. >> reporter: state law dictated the change, and most districts could not open any earlier than 2 weeks before labor day. leaders pushed for the change making it easier for students to retain the material learned in the 1st semester, and they will have more class time ahead of the state >>> polk, pasco, and sarasota start next monday. all school districts will end in may, and last year some districts did not end until june. >>> it'sday 7 of the rio games, and our usa athletes are ready to go for gold once again. a live picture from rio. here's the events. katie ledecky will be swimming in the freestyle, and the 800- meter freestyle. missy franklin won gold in this event in london, but she did not make the final. we have our first day of track and field today. the first medal from the women's 10,000-meter this morning at 10:00. and also the women's soccer team will be in action today, facing sweden in a quarter fi