Diversity training is generally designed to help participants gain the awareness, knowledge, and skills necessary to work effectively with students, families, and colleagues with disabilities and from diverse racial, ethnic, immigrant, language, economic, religious, gender, and sexual orientation groups. It usually begins with the preparation of teacher candidates in colleges and universities. As the student population becomes more diverse, schools and school districts develop professional learning opportunities for teachers, other school professionals, and staff to develop a better understanding of the communities and students they are serving.