Classroom Activity
Color Sines
Color vision, periodic functions and computer technology

Students:

  • Explain how photon energy is related to color and wavelength
  • Investigate the RGB system for replicating colors and
  • Use trigonometric functions to program a sequence of color changes

. The activity uses the RGB Color Mixer.and a TI-84 family calculator. (Because it uses the calculator's internal clock, the program is not fully functional with TI-83 family calculators.)

. It is also available for Windows-based computers. The computer version requires that you have the LabVIEW Run-time engine installed, but it can run using an on-screen display with no additional hardware. For full functionality (including operation of the RGB Color Mixer and the possibility of input from sensors) you must also have a SensorDAQ installed on your computer.

For LabPro or CBL2

 

Author: Fred Thomas
Activity last revised: 02-13-2009

Documents
For Calculators Participant Handout | Facilitator Notes
Programs
This activity requires the TI-84 calculator program CLRSINES

 

Documents
For Windows Computers Participant Handout | Facilitator Notes
Programs
This activity requires the LabVIEW Executable program Color Functions, available here as a zipped file, including the 2 documents above, Color Functions.zip(1 MB)