Many children with sensory processing disorders struggle in ways we could never imagine. They are contending with so many sensory inputs at one time that it become overwhelming, and short of an overlod, which causes their behavioral meltdowns. My son has sensory processing disorder. On of the major deficits he struggled with is auditory processing disorder. What's very frustrating is that you can not see his disability and to the natural eye it doesn't exist.
Because of this disorder, a child can be a superior reader (which Josiah is) but struggle in the classroom because his auditory system is out of balance. He can have perfect hearing (which Josiah does) but still not be able to process all of what a teacher is saying. Book learning is not a problem specifically, but learning in general is a challenge because he is not effectively processing Verbal Instruction.
Imagine being in a crowded room where everyone is talking, horns are blowing, paino is playing, baby is crying, someone is laughing, chairs are scratching the floor.... And all this is going on at the same time, and you hear it all. How can you make sense of what you need to focus on, or what's being said or directed at you. You can't! It becomes difficult, overwhelming, too loud and stress. Now just imagine not being able to escape that noise and you're being force to stay in it and deal with it. Well you will fight your way out; thus and emotional, physical and aggressive meltdown occurs.
So I say to you, don't be afraid to dig deeper, and find the root cause of your child's problem. You can change your child's life for the better if you're just not afraid to face the facts!
I hope this has helped someone....