This one is about a year old. It's short and simple. As I recall, I used it for an opener problem and nothing more. In my development as a math teacher and curriculum developer, though, it has a lot of sentimental significance. In Leslie Knope's Love Life, I wrote about my goal to draw inspiration closer to action through practice, practice, practice, and this is the result.
I was driving along, checking Maps on my iPhone for directions, and found it interesting how the blue tracking orb moves faster when you're zoomed in close to the map and slower when you're zoomed out. Reflexively, I turned it into a question: "how fast is the car going, given this particular orb?" Then I tweaked it: "Do we arrest this person for speeding?" (Crime doesn't pay, but it's more interesting to my students.) Then, just as reflexively, I knew the image I needed to create.
Such a simple thing, but it was one of the most satisfying moments of my professional life.
The problem archive, including:
- the video with the timer,
- the video without the timer,
- a photo of a speed sign at that intersection in Compton,