Now Playing: 1-15-13 Marketplace Morning Report

A decade ago, Dell was the biggest PC-maker on the planet, but as the company struggles to compete, its stock price has been
in a steady decline -- until yesterday. Dell shares jumped 13 percent Monday on news the company could be going private. The luxury homebuilder Lennar reports quarterly earnings today. The company has been on a  roll lately thanks to an improving housing market. And, Florida tries out a new higher education system to increase science and math majors.