You can pray all day if you like, read your bible, whatever, you just can't tell children to join hands and pray or come here, let me read this to you. Now you're breaking the law. It's not trampling on your rights like many christians like to proclaim. School is for learning English, Math, Science, Social Studies, other subjects, not for "growing spiritually" or whatever. You can go to your place of worship and use your own money for that.