We even rehearsed shopping at a store, one of our favorite simulations. We set up a number of reading books, comics, bookmarks, a play cash register and price tags for each book or sale shelf of books. She carefully plans how many books she can buy using most of her money but never more. We are all into seed and plant catalogs in winter. It takes some real math juggling to figure out the most economical assortment of proper plants for your hardiness zone that will fit in your garden and mature at the right time.
Pretty pictures help a lot.
You may want to let them cut out pictures and description for projects when done with the catalog. Just watching the stars can be greatly enhanced with a simple star chart. Bear in mind, however, knowledge of simple geometry and calculating angles will be necessary as well as some solid geography and astronomy. This can lead into navigating by the stars which we read about in Christopher Columbus' log book. There are times you may be shaky on a topic yourself.