Because of this, you have a wealth of knowledge to share. A single child's success story is full of ideas that could be valuable to another educator. If you are a student, you are gaining lots of knowledge as you study and move through the practicum experience. As you have discovered, topics in special education are abundant. It is not possible to get in-depth knowledge in all areas during the college years, so continuing education is necessary.
Educators use conventions as one method to expand their knowledge and understanding.
If you have researched and studied an area as part of you college requirements, you have something to share. Chances are there will be people attending the conference who have not had the opportunity to study that topic and would happily attend a session you would present. Convention attendees come from all backgrounds and areas of expertise. Therefore, presentations are needed at all levels of expertise and over many topics. The great thing about conventions is that people can choose the presentations that apply to them.