Should I require students with learning disabilities to identify themselves to me at the beginning of the term to receive accommodations?

No. Students cannot be required to self-disclose. However, students with known disabilities who choose not to self-disclose accept responsibility for the consequences of that action. Disabilities Services recommends that the instructor make an access statement on the first day of class such as, "If you have some disability which may impede your full participation in this course, please see me to discuss how we may provide reasonable accommodation for your needs." In addition, Disabilities Services also recommends a statement be included on the course syllabus.