What are some real-world, non-forced ways to explore integers?
Gathering data, measuring, building–so many real-world number situations never deal with negative numbers. Temperature, sea level, money — I can make up basic problems with these, but I don’t have ones that I love. Do teachers out there have favorite tasks that deal with negative numbers, especially subtracting them in a way that makes it real for students? Not tricks, but ways to develop real number sense? Thanks!