They’ll Need It for Calculus

  • They’ll Need It for Calculus

    Christopher Danielson
    Imagine a self-propelled lawn mower that is tied to a stake by a rope. As the lawn mower runs, the rope wraps around the stake, pulling the mower closer with each revolution. My Calculus 2 students viewed a video (Atterberry 2010) of this scenario one recent semester. The lawn mower is already under way as the video begins, and the viewer sees only a few revolutions before the video ends.