I once had a 7th grade student with asperger’s who tested at a 1st grade or kindergarten reading and math level. I helped guide him through his science fair project. I asked him what he was interested in. He replied “growing flowers.” I asked what helps make flowers grow. He responded with water and sunlight. From there I guided him and asked leading questions for his project on photosynthesis. He collected real data and supported his hypothesis. By the end he could explain the process of photosynthesis. This is his project board and he won at the school level and went to the district competition! This is perhaps my most rewarding experience as a teacher.