It could be a scene out of "Fame": a box in the corner cranks out the music, a slight figure in black yet is out the beat, and 23 bodies jump, spin, and twist across the room.

"Now remember, we're professionals here--we have to concentrate," yells the figure in black. But she's not eyeing a plie or criticizing an arabesque--she's trying to stop one of the dancers from worrying about the big rip in the crotch of his pants.

These are not performing arts students; they are fifth and sixth graders, for whom dance class isn't just the last hour of their schoolday. As participants in Citystep, a program that brings undergraduate dancers into four Cambridge public schools to teach children to dance, these children are learning not just teamwork but also a new mode of communication--movement.

"In the beginning, we just played games, like snake, cool cat and fox," said 10-year-old Jessica from the Agassiz School. "We learned to wriggle like a snake, stretch like a cool cat, and jump like a fox. In the show, me and my friends do ballet barrels. We pretend we're barrels and puff up our cheeks and stuff like that."

According to Sabrina T. Peck '84, who created Citystep and also directs it, she and the 20 other undergraduates who work with about 100 fifth and sixth graders attempt weekly to portray the vitality of urban life, as seen through the eyes of a child. She says, "We don't just dance with the kids, we provide role models, we work on creating a curriculum that helps them explore events and themes in their lives."

The dance program will culminate with performances at Sanders Theatre this Sunday and Monday and at the American Repertory Theatre on March 11.

Peck describes the program as a collaborative effort that requires careful cooperation for success. "We pull together some of the finest undergraduate dancers, musicians, technicians, and producers with some wonderful kids to do something both artistically and socially rewarding," she says.

"My interest is literally split between kids and dance, which is what makes it so exciting," Peck adds. Among the dances to be featured 'in the performances are an impish boy playing with his shadow and three girls sharing friendship during recess.

Last sping, Citystep's first production at Sanders Theatre played to the largest single Harvard audience ever, followed by a sell-out command performance at the ART. The company's expansion from a dance company giving demonstration sessions at area schools to a full-time teaching program was encouraged in particular by its reception from several hundred Cambridge schoolchildren who were invited to the performances. "There was such positive reinforcement from the teachers and administration that I thought I'd stay on and choreograph on a serious level with undergraduates, says Peck.

Stanford T. Makishi '87, who has been with the company since its inception last year, welcomed Citystep's entrance into the classroom. "I wanted to do some kind of social service last year, but I couldn't fit it in with the dancing," he says. "This is a great way to mix both. It's incredibly rewarding."

Like all the dancers in the company, Makishi teaches two one-hour sessions per week at an elementary school and several hours each Saturday at an all-day session for more interested students. Peck teaches at each and all of the classes in addition to choreographing the dances, and rehearsing the week's curriculum with the undergraduates.

"I only thought the program would work in the beginning because of Sabrina," said company member Rachel H. Inker '86. "She's a wonderful teacher with such unusual energy."

"Sabrina's amazing," agreed Andrea Fastenberg '86. "A friend of mine spent the day with her, and all Sabrina did was play the dance music again and again and again. She's always thinking the music, living it, trying to imibibe it so the choreography is perfect, natural."

"Hey," says Peck to the class. "When I get here, which foot is first?"

"The right!"