Reading Tools: Writing

I was recently told that my oldest needs practice with "written expression."  At first I was mystified (since this is a comment from his science teacher, not English) but I did some research and came up with a few strategies I think might work to help with this area.

Written expression involves:
Spelling
Handwriting
Main Ideas
Typing
Organization

Some games we've been playing over the Thanksgiving break are Crossword Puzzles, Scrabble, Hangman, and Appletters.  Also I've been writing him emails in order to get him to respond typing to me.  Crossing my fingers that this helps him in school.