From the New York State Department of Education’s Common Core Standards 2014-2015 for social studies in the 2nd Grade:

The United States was founded on
democratic principles (dignity for all,
equality, fairness, respect for authority
and rules.
Government is established to protect the
rights of citizens, promote fairness, and
keep people safe.

Compare this with the text of the Declaration of Independence regarding founding principles and the purpose of government:

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.–That to secure these rights, Governments are instituted among Men…