Ok kiddo, let me explain what happened in the case of Lassonde v. Pleasanton Unified School District.
So there was a boy named Drew Lassonde who has a medical condition called Type 1 diabetes, which means his body can't make insulin to regulate his blood sugar levels. This means he has to check his blood sugar a lot and give himself insulin shots throughout the day.
Drew's parents wanted him to be able to check his blood sugar and give himself insulin shots whenever he needed to, even during class at school. But the Pleasanton Unified School District didn't want him to do that in class, because they said it would be disruptive to the other students.
Drew's parents sued the school district in court, arguing that the school was violating his rights under the Americans with Disabilities Act (ADA) and the Rehabilitation Act, which protect people with disabilities from discrimination.
The case went all the way up to the Ninth Circuit Court of Appeals, which is a big court that decides legal cases for the western part of the United States.
The court ruled that the school district had to let Drew check his blood sugar and give himself insulin shots during class, because it was necessary for him to manage his medical condition and it wouldn't be too disruptive to the other students.
So Drew and his parents won the case, and now other students with diabetes or other medical conditions have the right to manage their conditions at school, even if it means doing things like checking their blood sugar or giving themselves insulin shots in class.
Does that all make sense, little one?