Device dependent mixing

STEAM Exercise (THIS EXERCISE NEEDS WORK)

Details:

  • Ages: 10-12+

  • Time: 20 minutes

  • Learning Outcomes:

    1. Notice that coloured printed material and colours displayed on screens are made from combinations of colours.

    2. Notice that the same formula for a colour can appear as different colours when viewed on various devices (phones, Ipads, computer screens, etc.)

  • Colour Concept: The medium used (e.g. print vs. screen) and the display system (e.g. Ipad vs. phone, or different phone manufacturers) all impact the perceived colour.

Materials:

  • Mini-microscope and/or Digital microscope NEED A LINK TO RESOURCES

  • Variety of printed colour material (printed colour pages, books, etc.)

  • Phone or Ipad/Tablet

  • Color Savvy app NEED A LINK TO RESOURCES

Instructions: **THIS EXERCISE NEEDS MORE PRECISE DIRECTIONS

  • CMYK Printing: Look at a variety of printed greens under the Mini-microscope (see Figure 1).

  • Compare the composition of vivid, light, dark and muted greens. CAN WE MORE PRECISELY DEFINE ‘COMPOSITION’

  • Option: take photographs using the Digital microscope NEED INSTRUCTIONS ON HOW TO USE IT

  • RGB Displays: Open the Color Savvy app

  • Match the green that you mixed in paint with the Optical mixing using spinning disks exercise.

  • Look at the colour display on your phone or Ipad/Tablet through the microscope(s). Compare the appearance on your digital display vs. on the painted disk.

  • To further explore digital greens, play with the RGB sliders in the app (see Figure 2) to make a variety of vivid, pale. muted and dark greens. Compare their appearances through the microscope(s).

  • Ask a friend to take a photo of your screen, and compare the screen colours.

NEED A BETTER IMAGE

Figure 1

NEED A BETTER IMAGE

Figure 2

Vocabulary:


QUESTIONS & OBSERVATIONS:

  • Are all the colours as you expected?

  • How did you make pale, dark and muted colours?

  • How does the pained green compare to your photo of the painted green? Do they appear as the exact same green? How do they compare when you view them through the microscope?

  • Compare the photo of your green on your device, with the photo of your screen on your friend’s device. Compare on the devices of other students.

What’s going on?


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