I was going to stay out of this but the "truth" comment dragged me back in again.
What is truth, as a noted Roman official once asked.
Teachers should not be imposing their truth, be it for a God or against a God.
Keep religion out, teach science and maff and the kids can figure it out.
Telling the kids there is no god is teaching science
Many scientists believe in god and find no problem teaching science without mentioning god.
Seems like you have an agenda.