This situation violated a teacher's obligation to the student, and to the public: 3d: The teacher shall not intentionally suppress or distort subject matter... 4a: Shall take reasonable precautions to distinguish between personal views and those of any educational institution...with which the individual is affiliated.

Yes, principles were violated. Students have a right to learn the material that you are withholding from them.

5a. Shall maintain honesty in all professional dealings. This case violates the Florida Code of Ethics. You should be honest with your students, and should not deny the curriculum to your students. The students may have different views, and come from diverse backgrounds. You should keep your lessons professional and make sure your students are learning about curriculum materials.

Is it bad to teach children to be ecological? Of course not. The Green Party does not have a whole lot of steam these days, but their policies are sound. I actually voted Green Party in the last election and met with Jill Stein. I think we need to put ecological frameworks in place as soon as possible, and get kids inspired to be proactive in cleaning trash and recycling and putting an infrastructure in place that will eliminate wasteful corporate power and provide ethical products for everyone. Every teacher is biased anyway, I am not ashamed of presenting my personal biases to children, as I believe that we can make a better future together. It is up to us as teachers to affect future generations as much as possible.