From the Norms report, the 235 reading is off the charts for 1st grade and at the 95% for 6th grade. The math is at the 78% for 1st grade. Sounds like he's quite a reader!
(Reading norms page 143 Math norms page 155)
http://pickens.it.schoolfusion.us/m...ssionid=14d1e9266e4482d198ebc39c6e6bc9c3
These may help with ways to differentiate his reading:
http://www.sowashco.k12.mn.us/ro/Pages/studentlinks/map/reading.htm
http://www.foridahoteachers.org/ID%20State%20Learning%20Continuum.pdf