United States Education Secretary Arne Duncan says starting school later in the morning would result in better performance from students, especially those in high school.

"There's lots of research and common sense that a lot of teens struggle to get up at 6 in the morning to get on the bus or 5:30 in the morning to get on the bus," Duncan told National Public Radio.

"Study after study has shown mornings are very difficult [for teenagers]," Duncan said. "They're not very awake -- they're groggy, they're not able to pay attention in class."

But Gayle Fallon, the President of the Houston Federation of Teachers told KTRH that doing that would make for a lot of unhappy parents.

“You have to arrange to pick up three shifts of kids. Generally our later start times are the high schools. We’d have a parent revolt if we started school later,” Fallon said.

Fallon also explained that many teachers she hears from say that their earlier classes are actually more productive than their classes later in the day.

“What we hear from most of our teachers is that their best classes are their early morning classes in high school,” Fallon explained. “I remember that from when I was teaching. They were alert. They were ready to go. But the fifth and sixth period it was a struggle.”