Hi Crystal, and welcome to the HOD board!

I am excited for you to begin your homeschooling journey with HOD, and also praising the Lord that He has helped you come to this decision to homeschool this coming year! We have used HOD for 10 years and are still loving it.
I agree with the ladies' advice that Beyond sounds like a good fit for you older 2 dc. This was some great advice...
Robbi wrote:Hi, it sounds like your younger will do fine in Beyond. The grammer in it is very light, just one day a week...There are 2 spelling lists in Beyond but if your older is past those you can get just the Bigger guide for the dictation. The Bigger guide would also have the math activities for Singapore 2. Singapore is different but what makes it great is the activities Carrie has planned with it. There is something about subtracting by eating choco chips one at a time that really solidifies it for the kiddos. Lots of the activities are snacks!!! Big hit & makes math fun!! I would say give Singapore a try!
I would combine the 2 older dc in Beyond - I think that will be a good placement that you will love!

Singapore Math has worked well for all of our sons - 1 who is mathy, 1 who is not, and 1 who is too little to tell.

Our oldest has worked through level 6A, our middle through 3B, and our youngest is in Earlybird Kindergarten. I would agree with Robbi that the activities Carrie has written for Singapore Math through 2B help catapult it into the "love it" category!

Your friend may not have had the activities in HOD, as well as the nice planned out pacing and schedule for Singapore Math in the HOD guides. I would recommend giving your 8 yo the free placement test, starting with 1A Primary Math US Edition (as Singapore is considered advanced), and making sure not to help as it inflates scores. Here is a link to the placement test...
http://www.singaporemath.com/Placement_Test_s/86.htm
Wherever ds places is where I would start him. I think I'd at least give Singapore a try, as HOD has it all conveniently planned out for you and has neat hands-on activities your dc will love already in the guide. You can always switch to something else the next year after giving it a try. I think Singapore Math is hard to come into only if you have dc that are much older, like doing 5th or 6th grade level math. Otherwise, it is not hard to come into at 8 yo.

However, if you find you prefer another math program, any math does work with HOD, so you can choose that if you wish.
I can help you with what to order specifically if you can tell me these things...
- What stage of reading are each of your dc at? (phonics, or beginning early readers - like "Frog and Toad" books)
- What level of math fits each of your dc? (probably 1A/1B for the 6 yo, but what does the placement test say for the 8 yo after you give it?)
- Would you like your books you read aloud to be more classic and a little old-worldly sounding, or more all boy and a little easier to listen to?
You could also do "Little Hands to Heaven" with the 4 yo - that would be fun and easy to do!
I'll check back - HTH - and looking forward to getting to know you here!
In Christ,
Julie