another time
Most Thanksgiving books would work well. Choose a really simple and factual book about Pilgrims. Make a large venn diagram on posterboard and provide some pictures (cut them from worksheets for older kids or copy from wherever) that you've pasted on small cards. Have kids sort the cards (foods, clothes, transportation, etc. that might have been evident in the book's story or illustrations) into Then, Both, Now. Make another set that shows things in the environment (water well, water faucet, cook fire, electric range, chair, etc.) and have them sort into There Both Here.