Jennie Garth Trades Acting for Walking to SchoolFor most people, October is spent welcoming cooler weather, carving pumpkins or planning Halloween costumes, but for actress Jennie Garth, it's about a lot more than just fall fun.

As the nation fights against childhood obesity, the mother of three has joined forces with Green Works Naturally Derived Cleaners as the spokesperson for International Walk to School Month.

Garth walked a group of students in New York City to school on Tuesday morning in hopes of encouraging a healthier lifestyle among children. During the month of October, elementary and middle school students and their families can help their schools win one of five $5,000 grants – simply by walking or bicycling to school.

"This kind of work is more fulfilling thing to me in so many ways than sitting on a set waiting for the lighting crew to be ready," she says of working with Green Works.

Jennie Garth chatted with PopEater about why walking to school is so important and why acting doesn't hold a candle to motherhood! Read the interview behind the jump.