A great resource is the books by Ruth Beechik. You can teach the kids to read and write and spell without a curriculum. Even math can be taught that way although there are some inexpensive workbooks to help in math. We simply read and write a lot. Reading comprehension is usually acting out the book or drawing pictures.
Writing can be a book report but often it is a letter to a friend or a story.
Then I help correct the spelling and make a practice list to work on. Every couple of months I read through a scope and sequence list to see if we are forgetting something and try to add that in. For record keeping, I just write down what we do every day. It is important to write it down every day if you are not following a pre set plan, then you will see how much you are doing. I just got a calendar book at the store and use a highlighter to mark different subjects.