But, in said letter, I feel like I would have to leave out anything school-related which, let's face it, is a huge chunk of what life is about when you've got kids. I can't even metnion which grade my kids are in since my DD is two years ahead of age and my DS is one year ahead, and this would be construed as bragging.
Can't you say things about school that don't involve specifics of what grade/level they're at, though? Our letter talks about what DS thinks of his teacher and what his favourite subjects are and what clubs he's doing and what he thinks of piano which he just started this term, and how our journey to school is going [that's a bit specific, we have an "interesting" travel issue]. That adds up to quite enough of the letter being about him, without saying anything that implies he's ahead.
