Check the research on our Founding Fathers. It shows that they never intended on a separation of church and state the way it is today. They did NOT want the establishment of a national denomination - like having us all be Baptists or all Catholics. The phrase is not even mentioned in the Constitution or the Declaration of Independence. It was first introduced by Thomas Jefferson in an exchange of letters between with the Baptist Association of Danbury, CT shortly after he became president. I believe it has only been since the case of Everson v. Board of Education (1947) that the Supreme Court declared, "The First Amendment has erected a wall between church and state." This is unfortunate since this was not the intent of our Founding Fathers.
Did you know that the first Congress authorized the printing of Bibles for the use of schools! Why would they do that if they wanted separation of church and state? And prayer and the reading of the Bible continued in public schools until only a few short decades ago! We've gone downhill very fast in a very short period of time. You can make a good case for showing that this has happened ever since we took prayer and the Ten Commandments out of public schools. Prisons have exploded up to 800%, Jr. high kids are having sex, drugs are rampant, teen suicide is up, etc.
Think of this: What purpose do kids have in life if they can't answer the big questions of life such as (1) how did we get here? (2) what purpose is there in living? and (3) by what standard is right & wrong? If they believe there is no God, then we are reduced to believing that we came from premordial soup somehow or were seeded from aliens from outer space. Do you see what I mean?
Be grateful when you see kids in school bowing their heads acknowleding a higher power and thanking God for their food. This is what the first Pilgrims did! Let's hope they don't take that out of our kids' textbooks!