Robin worked with Saxon Math 1.
Part of the lesson was about sorting food items. Instead of the suggestion to sort according to where things would be shelved in the grocery store, we sorted by food groups (our own: protein, carbohydrate, fruits/veggies, other, and combo).
Robin read a Bob Book, and I read to him.
Including this: http://outofedenwalk.nationalgeographic.com/2013/01/22/lets-walk/ - the first dispatch from the guy who is walking from Ethiopia to Tierra Del Fuego over the course of 7 years.