President Barack Obama signed an education reform law today that brings a new approach to accountability and teacher evaluations. It replaces the "No Child Left Behind Act," which George W. Bush enacted in 2002. The act's purpose was to allow the federal government to hold schools more accountable for standardized testing scores among students. President Obama said it had the right goals but fell short of producing the desired results The new law shifts more decision-making power back to individual states. It also eliminates standardized tests so teachers and schools can be evaluated on engaged student learning.