Michelle, you said, "In the United States, most children get what they need for school. "Also, "I refuse to let one of my students do without if possible."

'Most' children are not 'all students' and 'if possible' is not good enough.

The govt. should not be "subsidizing" parent's and teacher's contributions (another statement you made.) Rather, they should completely fund education so that all students have an equal opportunity. That is the basic foundation of public schooling.

Parental funding is what private schools are all about. Govt. funding is what public schools are all about. In no case should a teacher be subsidizing any school. By doing that you are taking part in a cover up and padding your own ego by claiming that this is what a 'good' teacher does. A good teacher, teaches with whatever they have available. They do it all the time. That doesn't mean that the materials and resources are in any way adequate.