I am the sister/editor with the 3 boys and agree that HOD is definitely boy approved!

However, there are elements of HOD that will appeal more to boys, and some that appeal more to girls (and of course these are not set in stone - some parts just appeal more to certain personalities rather than a certain gender). God certainly made boys and girls differently, and that can come through in all walks of life - school included.
I agree with what's been said about dc preferring textbooks/worksheets. I actually think what you are describing with your ds is an "I like to get it done and move on" kind of character trait. This kind of no frills, the "facts only please ma'am" approach is pretty common among boys (and men

) in general. This is a great trait, and one I like to encourage in my boys. I'm not sure what age your ds is, but if he's doing the rhymes/motions, he's probably pretty young. If this is the case, I'd say your ds probably likes the idea of finishing school to get to his playtime - another pretty common trait among boys. He also may not enjoy your dd's enthusiasm for drawing things out in school - I taught ps school for 7 years, and overwhelmingly girls just got more into school than boys, and boys just got more into recess/gym than girls.
Your ds probably enjoys finishing in a predictable amount of time, and probably does not enjoy drawing out discussions, adding detail to art projects, singing in an excited voice, etc. That does not mean these things aren't worthwhile - it just means they will take more of an effort on a boy's part. I was just thinking today watching my dh sing in church, how I wish he'd get more into it - and then I looked around and saw my sons were some of the few boys singing quite cheerfully (actually very few were singing at all

). I thanked God for them singing in school through doing HOD. My dc are all boy - and I'm quite sure HOD's the reason they sing in church - and I'm also quite sure God is brought glory through this. Same deal with art projects - sure it may not be my ds's thing - but he can draw quite well now and has learned to enjoy it so much more. My dh used to draft projects as a mechanical engineer, just one more example of needing to have some creativity/art ability. Sure, writing answers on a worksheet may be easier and more in a boy's comfort zone, but learning to discuss things is a higher level skill that virtually every job a man can have some day requires.

It is this way with all of the skills in HOD, and it is worth any growing pains that may be caused by learning them.
HOD has an incredible balance of hands-on activities and sit-down paperwork - all centered around God-honoring excellent living books.

It's worth stretching our boys a bit to teach them these skills in this manner. As your ds ages, you can definitely plan his day with his character traits in mind. Here are a few examples of traits I've seen in my 3 sons and some things that can be done to work within that trait and use it to our advantage...
*likes to finish in a timely fashion: allow concise answers and move on, if he is paired with a female sibling that likes to draw out discussions or projects, you may need to let him move on while finishing with dd
*likes to be in control of his day: let him use the HOD guide as his own, checking his boxes off as he goes (this works well starting with BHFHG)
*likes to complete his projects quickly and move on: as long as his work is done well, is quite neat, and completes the guidelines laid out in the plans, accept it as good (rather than expecting him to add more to match what we might have done if we'd been doing the projects

)
*likes to answer questions with shorter, to the point answers: allow this as long as the question is answered (a good short answer is better than a rambling answer anyway)
*likes to have time for independent playing/creating: finish school on time in the alloted times suggested in the guides, even setting the timer for boxes if need be (we are finishing CTC in 4 hours, and my ds is thoroughly enjoying it and also is excited to get to his free time for the rest of the day as well)
*wants to feel in charge of his day: try not to hover (oh this is a hard one for me!

but it helps me to give him the directions, get him started, and then literally walk away to another room - usually I'm working with my other dc anyway at that point - and come back to see how it went)
Carrie has 4 sons herself. Her oldest ds always pilots the program before she publishes it, and her other 3 sons do the programs as they are written, so she has a pretty good gauge of what boys can and will do.

She writes with both the state standards and with God's "standards"

in mind. If it's included in the guide, there's a very good reason for it being included, and more often than not, it is near to impossible to recreate the same learning opportunities with textbook/workbook approaches. Take it from someone who has been there done that with the textbook/workbook approach with hundreds of boys over the years - if retention and a love of learning is our goal for education (which I believe these are core goals for any level of education), HOD will meet those goals better hands-down.

I hope this helps some - I think you'll come to love these masculine traits in your ds - I sure have!
In Christ,
Julie