Chanda,
Thanks for your response and the Usborne Book of World History suggestion.
To answer your question.
I would be comfortable with short lessons that could be done daily or more involved, well laid out lessons, that could be covered in 2 days a week.
I am really wanting to focus most of our time each day on a couple of other subjects. However I do want to gently cover history in a way that would lead us down a 4 year course of study.