May 11th, 2016

In 3 of the Noticing Tools – Playground Physics, Size Wise and Volumize – you are prompted to create a real world approximate scale for the project.  The more accurate your scale the more closely your data will express the motion and sizes in the apps.

With Playground Physics, for the best data, it’s essential to be as perpendicular to the motion as possible.  The example above is meant to show one way to create the scale for the scene, since we know the length of the tennis court.  But, since the video is taken at an angle, the data is a bit loose.  (In an example like this, try comparing the data when the 78 ft. horizontal scale is set at various spots on the court onscreen, lined up with the baselines.)

So, this tip is threefold:

  1. Be mindful of the scales you set with the Noticing Tools, the more accurate the scale the better your data.
  2. Be as perpendicular as possible to the motion  in the videos you capture in Playground Physics.
  3. Use known lengths and heights to create your scales.  This could be heights of people, buildings, or lengths of tennis courts!

Length of Court Vol-Guggenheim-Scale IMG_0987

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