Hi. I will need to do one of these two:
1. Train you on writing skills
2. Observe him while writing.
It's difficult to give the exact writing analysis otherwise. In general, you may want to look at these aspects:
- digit strength (too petite, or too round, or too weak fingers may not have sufficient grip)
- palm sweat (it's tough to have a good grip if palms are sweaty. Use taped pencils for this)
- writing posture (wrist rest, tripod grip, writing shoulder, writing elbow, free-hand position, torse bend, paper slant, pencil slant)
- pencil type (kids with petite digits find triangular/hexagonal pencils painful)
- letter connectors (for cursive)
- interest in writing ( which can be low due to writing pain, fear of judgment of bad handwriting, fear of judgment of bad spellings, poor role models around)
- unpleasant experience in past
You may want to see if his pre-writing skills have been established or not first. See if he is good at cutting, tracing, coloring, dabbing, sticking etc