Homeschooling Goals

Kyle is getting very close to finishing the 4th grade.  He has a handful of spelling lessons left and less than 1/4th of his arithmetic and language to complete.  That being said, I think he's starting to feel a little burnt out.  Usually by early April we're finished with school but this year I don't think we'll be finished completely until May unless Kyle steps it up a notch.  Part of our late finish is my fault: both the arithmetic and language book are twice as big as last years so I really should have given him more work to do out of them on a daily basis.  I increased the work load last month, but it's slow going.  I'm trying to think of a way to make things easier for him now, without overwhelming him in the process.  One idea is to double up on the math and language workload but have him do only one subject per day - so he might have to do 4 pages of math, but only every other day.  I definitely need to switch things up so that we can successfully finish the 4th grade sooner rather than later.  For the past couple of weeks he's been moving at a turtle pace and has been very vocal about the work being too hard, even though it's not.  It took him twice as long than usual to grasp a new concept in math earlier this week, one that was pretty simple compared to other things he's had to learn.  It's also taking him twice as long to finish his work in language which makes zero sense because that's definitely always been one of the easiest subjects he has to do.  So I'll change things around next week and see if that makes a noticeable difference.  The great thing about homeschooling is that you can customize your child's workload to better suit their needs.  It's been a long time since I've had to re-evaluate Kyle's school schedule so I guess we're due for some changes!  In the meantime I'm setting some goals for this summer for both Kyle and Bella.  I want Kyle to learn all of the States and Capitals and have an overall better understanding of Geography in general.  And I want Bella to learn how to read.   My goal for Bella may seem ambitious - she doesn't turn 5 until July 31 which means technically, if she were in the school system, we would have the option of sending her to Kindergarten this Fall or waiting another full year.  But I decided a few months ago to start her on Kindergarten work when it became clear to me that the Preschool work was far too easy for her.  Her learning level has since exploded - she's writing clearly now and understands most of the Kindergarten basics.  So even though she's young, I feel that she's ready to learn how to read.  Yesterday I ordered the book "How To Teach Your Child To Read In 100 Easy Lessons".  When I started homeschooling Kyle he had already been through private preschool and public kindergarten, so was well on his way to reading independently.   This will be my very first time teaching a child how to read, so I'm a little unsure of myself.  While I don't expect Bella to be reading independently by her 5th birthday, I would like for her to have at least grasped the basic concept of sounding out words etc.
I've already purchased a bunch of (used) 5th grade books for Kyle.  I'm on the fence as to whether or not I want to invest in a Kindergarten Curriculum for Bella or if I should just use free curriculums via the internet for her.  I didn't start using the A Beka Curriculum with Kyle until the 2nd grade, although I have the 1st grade A Beka Curriculum already for Bella.  I used to just use the internet but that can actually be a lot of work, trying to find enough material for each subject etc.  Kindergarten is really basic and simple though, so we'll see.