What we use is:
Reading:
6 year old:
Reads through a book list I constructed combining Robinson curriculum, Old fashioned education, Sonlight, Ambleside, Great books (He’s currently wrapping up Tom Sawyer and Huck Finn books, soon to be starting Narnia)
2 year old:
The ordinary parents guide to teaching reading
Readingeggs.com
Bob books
Preschool prep meet the phonics and sight words
Writing:
6 year old:
Daily language lessons
Spelling workout
First language lessons for the well trained mind
Writing with Ease
2 year old:
Kumon:upper case letters (done), lower case letters, numbers, mazes, coloring, crafts
Math:
6 year old:
Jones genius Math 3
Dreambox.com
Flashcard review
Right brain multiplication and division (got for free on currclick)
2 year old:
Counting activities
Skip counting songs
Right Start A
For science we own 360 acres so our kids are great at identifying plants/animals, they read lots of books on plants/animals, my eldest loves his snap circuits and does a fair amount of sodering with dad. We also have the first library of learning books which are great.
History is included in reading too, but we also read “Little history of the world” and “Story of the World” aloud. In addition we have a lot of Classical conversation materials that we use. Including the CDs that we listen to in the car with the history sentence songs.