For healthy hearts      PHOTOS BY ERIC SUCAR Above: Mariah Flanagan and third-grade classmates play skip stick, a jump rope game, during "Jump Rope for Heart," a fundraiser for the American Heart Association. Right: Annalise Fagan and schoolmates participate in the hula hoop jump during the event, held in the gymnasium of ... More ... Principals welcome challenges of new posts New administrators at district's Lincroft and River Plaza schools BY MARIANNE KLIGMAN Correspondent       LINCROFT - Luigi Laugelli stands at the front of the classroom and points to a bright-eyed, giggling young man. He asks his name and then gives him a clue word to remember. "Now whenever I see you, you give me that clue, okay?" he tells the student. "That is how I will learn your name. More ...