As of mom of 5 yr old twins (boy & girl), I know what you are going thru. My daughter does a lot better in all areas of her learning. My son on the other hand is lacking in most departments, but it steadily doing better every 9 weeks. We decided to seperate them and the principal of the school recommends that.
Boys are a little behind girls learning wise. Both teachers and any other teacher that I know have always said that girls are "in to" playing school and learning faster...boys just want to play with cars, trucks, and the like.
I suggest that you may want to talk to both teacher & counselor at school or principal and see if you can seperate them. My daughter is like "mother hen" and she answers for him and it bothers him. By putting them in two different classes, I have seen him grow into being a 5 yr old instead of a 3-4 yr old. He has matured and gained more self-esteem. Not that I think he was lacking too much, but she is always looking out for her brother and he didn't have to answer or tell us what was going on because she did it.
We have to remember that they are two different individuals, but sometimes we as parents or grandparents have a hard time seeing it that way. I am SOOOOOO guilty of this. But I do see where he has done other things before her and she gets irritated that he does. For example...he has lost two bottom teeth, where she has only lost one. She is always saying this tooth or that tooth is loose and it really isn't but it makes her feel better that she isn't "behind" her brother too much. :)
This also may be true for your grandchildren....our twins are learning to read & write on a 1st grade level. Which is the new "norm" for our local school. Our daughters teacher has been a Kindergarten teacher for over 20 yrs and she even said that this new class work, makes them older than they should be. She believes that Kindergarten is for kids to color, play with blocks, learn simple things....but it is no longer like that. I find it hard on them as well. I look at the work they bring home and wow I am certainly amazed. The are expected to be reading at 1st grade level by the end of the year. It wasn't like that when I was in kindergarten over 20 yrs ago....we played a lot and learned basics.
As far as you helping him out...I sit down with both after school and do homework. She almost always has a weeks worth of papers to do. He never brings work home as homework unless he didn't complete the assignment at school. So since he is a bit lazy, we sit and write his ABC's, numbers, & name (first & last) paper and it reinforces him in what he has already learned but we make it fun at home. :) There are all kinds of workbooks at WalMart, Barnes & Noble, etc. that have different learning tools for them.
I also bought this cd off eBay called "JumpStart Kindergarten" and it is awesome! You put it on the computer and they go thru the different things they choose. Check out their website: http://www.jumpstart.com you can check it out before buying the cd. I bought it off eBay for a lot less money than it is sold for everywhere else.
Hope that this helps.
Take care,
God Bles,
J. D.
Gulfport, MS
Blessed Momma to Ash & AJ ~ 5 yrs old
Angel Momma to Baby C ~ November 2004
Angel Momma to Baby ~ May 2008