President Obama today called on a new generation of Americans to serve the country and become teachers. We have let our grades slip, our schools crumble, our teacher quality fall short and other nations outpace us, Obama said in an address to the U.S. Hispanic Chamber of Commerce. The time for finger-pointing is over. The time for holding ourselves accountable is here. Obama also noted that the recently passed $787 billion stimulus package will allow the U.S. Department of Education to help states upgrade data systems to better measure both student progress and teacher effectiveness. The stimulus plan, he said, will provide an additional $5 billion for the Head Start program, as well as expand access to child care.