It can be very difficult to understand what it's like for a child with a learning disability to participate in classroom activities, especially for a child who can't articulate all they are dealing with. I find it hard sometimes to plan treatments for kids to address some compensation methods or remediation of skills since I am still getting my feet wet. It's also hard to see preschoolers with simultaneous severe physical, visual, and communication impairments as they struggle to pick up on concepts such as identifying themselves, choosing an object, using a switch, etc. Some kids work EXTRA hard to learn, and if you were a good student and good at understanding the system (playing the game, as my Dad said) it's hard to see how something so easy for you can be so hard for someone else. So I encourage you to explore these sites' simulations a bit and try to work through the trials they have set up. Honestly, I could not make it through many of the sections. Just a short exercise to better understand struggling learners- appropriate for teenagers and older.
Children's Vision Network site for Vision and Reading