Because I'm a wee bit neurotic, I think I've figured it out, at least enough to say it makes sense on how to start.
So, I'm looking at Grade 3 ... here's a link to the Third Grade Workbook: http://home.pct.edu/~evavra/kiss/wb/LPlans/G03_WB_Start.htm#SV
This takes you to all of the lessons for third grade ... there are about 160 of them, so one a day or so. The first part in an orange box says KISS levels 1 & 2 Introduction. If you click on any of these links it'll take you further down the page to the actual exercises. There are two levels broken down below (again, in orange boxes), The Basics and Expanding the Basics.
Following? Haha. Okay, under the orange heading title The Basics, there is a yellow box, titled KISS Level 1.1 Identifying Subjects and Verbs. Clicking on this will take you to a Master Booklet with extra practice and teacher's notes. Then, below the yellow box are the 10 exercises within Level 1.1, the first one being What Is a Sentence?
Clicking on that takes you to the printable exercise. To the right of it is a link called Instructioal Material, which will aid in teaching the concept/lesson before introducing the respective exercise. The AK stands for Analysis Key, basically a marked up copy of the exercise for your use.
This was the most useful reading of all, I think: http://home.pct.edu/~evavra/kiss/wb/LPlans/How_to_Use.htm. Made me think that perhaps I need to start at the beginning, not necessarily at my daughter's corresponding grade. I need to ponder this more. I'd start here and get a clear understanding of how to begin with KISS, then go from there by grade/level.
This takes you to an Adaptation of Maxwells's Introductory Lessons in English Grammar, but KISS's author goes on to say that almost all of those exercises/lessons are included within the individual KISS grades and reviews. So, just an FYI.
And, this is a link to all of the printable KISS books. You can print directly from the online link to the left in the column or there is a Word doc available, too, with clear formatting so easy on the eyes, which is not totally true of KISS's site.
Oh, and this is a helpful link to the status of the online workbook status ... meaning if they're complete or soon-to-be complete.
Clear as mud? Truthfully, the heavens are starting to part for me and it's becoming clearer and I'm really liking what I'm seeing! Hope that helps someone a little!