Verse 1 of Psalm 53 states that the fool has said in his heart, "there is no God." In verse 4 the Psalmist asks the question, "will foolish ever learn?" And in verse 6, the Psalmist is glad because God has provided a way of redemption.
I think there is something of importance to gain from these three verses. First, only a fool would deny that there is a God. There are too many "coincidences" that occur there are too many wonderous things in our world, the interworkings of chemistry, the weaving of history through the ages, the preciseness of mathemetics. To believe that there is no God is to have all the knowledge and no understanding.
This leads to the second point. It is not that the evidence does not exist in the world to prove that there is a God, even without the Bible. But rather it is a failure on the part of man that he is unwilling to learn why. Why is there such preciseness in mathematics? Why has history moved as it has? How can chemistry be so complex yet so simple? The answer to all of these questions is simple: there is a God who is both simple, complex, purposeful, and changeless. However, those that reject God, do not want to have to answer that question so they remain foolish in their thinking.
The third point is the exciting part for those who are saved. Because we have asked those hard questions. Maybe not about chemistry and mathematics, but about ourselves and our purpose, we have learned who the author is: God. And further more we have gained insight into his plan for mankind. We have become aquainted with Christ and have accepted his perfect gift of salvation. We will be able to live with Him forever.
Finally, what is the application for teachers and students? We have a responsibility to teach students. It is a daunting responsibility. We must teach them mathematics and why mathematical laws are unchangable. We must teach them history and why history has moved through the ages as it has. We must teach our students to see the author behind the wonder that is the earth and its history. We do not want to ever give a child the excuse that we did not teach him well enough. We want to give him as many resources as we can so that he can make a complete and intelligent answer to the question of who God is and how he works.