* Strong communication skills: English and potentially speech/debate. Preschool teachers need to communicate effectively with children, parents, and colleagues.
* Basic understanding of child development: Psychology (if offered) can provide a helpful introduction to child behavior and cognitive development. This isn't strictly necessary, but beneficial.
* Math and science basics: Elementary math and science courses provide a foundation for teaching these subjects at a preschool level.
* Good organizational skills: Any course that emphasizes organization and time management, such as a planning or scheduling class (if available), will be helpful.
Most importantly, focus on maintaining good grades overall. Colleges will look at your GPA when considering your application for early childhood education programs. Strong study habits and a proven academic record are far more valuable than any specific high school course. Your focus should be on preparing yourself for the rigorous college coursework needed for a career in early childhood education.