Another approach is taken in the comic "Life on the Infinite Farm" (pdf: https://www.math.brown.edu/~res/farm.pdf https://www.math.brown.edu/~res/farm.pdf). I'm

Another approach is taken in the comic "Life on the Infinite Farm" (pdf: https://www.math.brown.edu/~res/farm.pdf https://www.math.brown.edu/~res/farm.pdf). I'm not sure it's entirely appropriate for children though.