BROOKFIELD, Wis. -

Tens of thousands of students are heading back to school across Wisconsin.

Among them are nine siblings in the Milwaukee suburb of Brookfield.

The Beffel children range from 4-year-old kindergarten to senior year in high school.

Mom Marisa Beffel said it takes a lot of preparation to get all her children ready for the new school year. The family has already dropped all school supplies at the siblings' respective schools.

Marisa Beffel said she'd be lost without her calendar, because if it doesn't get written down, she wouldn't remember all the children's activities and plans.

High school junior Lexi Beffel told WTMJ-TV it can get pretty hectic as she and her siblings prepare for school in the morning, but adds that it's like a party every day.