What did you give up?
Ask "If you had ten dollars, would you buy a book or a movie ticket?" Whatever they pick, the other one is their opportunity cost. Have partners explain their choice and what they gave up. Kids get the idea in minutes!
Why it works: using clear, consistent math words out loud is one of the U.S. Department of Education's recommendations for elementary math.
Try it withReselling for Profit Reading Comprehension WorksheetWorksheetsOpen it →







