An Olympic-sized boost helped the first lady's effort to get kids to eat right and get moving.
Michelle Obama was joined by three gold medalists from the Vancouver Olympics as part of her "Let's Move" campaign. The campaign offers information and support for parents who want to provide healthier foods and encourage exercise for their children.
The kids also heard from Keith Calhoun, an Iraq war veteran who just skied in his first paralympics. Calhoun has two prosthetic legs.
Each of the athletes worked hard and overcame obstacles to get where they are, Obama told the students.
She urged the students to eat right and get moving so they can get strong enough to become Olympians, go to college, or do anything else they want in life.