The Physics Classroom » Physics Interactives » Light and Color » Filtering Away » Teacher Notes

Notes:

The Filtering Away Interactive is an adjustable-size file that displays nicely on smart phones, on tablets such as the iPad, on Chromebooks, and on laptops and desktops. The size of the Interactive can be scaled to fit the device that it is displayed on. The compatibility with smart phones, iPads, other tablets, and Chromebooks make it a perfect tool for use in a 1:1 classroom. 

 

Teaching Ideas and Suggestions:

This Interactive is one of several Interactives in this section that pertain to the topic of color addition, color subtraction, filters, and color vision. There are six colored circles on the screen - red, green, blue, cyan, magenta, and yellow. And there are six filters through which to view these circles. Tap on a filter and view how the appearance of the circle changes. We suggest tapping on the button to toggle the background back and forth between a black background and a color background. Otherwise some of the circles blend in with the background and amy make you think they aren't even there. 

For those teachers who would like to provide their classrooms with a more directed experience, The Physics Classroom has prepared a structured exercise that steps students through the principle of color subtraction by filters. View Exercise.

Our Filtering Away simulation is now available with a Concept Checker. Do the simulation. Then follow it up with the Concept Checker.

 

Related Resources

There are numerous resources at The Physics Classroom website that serve as very complementary supports for the Filtering Away Interactive. These include:
  • Minds On Physics Internet Modules:
    The Minds On Physics Internet Modules include a collection of interactive questioning modules that help learners assess their understanding of physics concepts and solidify those understandings by answering questions that require higher-order thinking. Assignments LC6, LC7, and LC8 of the Light and Color module provides a great complement to this Interactive. It is best used in the middle to later stages of the learning cycle. It would be a great follow-up to the use of this Interactive. Visit the Minds On Physics Internet Modules.

     
  • Curriculum/Practice: Several Concept Development worksheets at the Curriculum Corner will be very useful in assisting students in cultivating their understanding of color vision, most notably ...

    Reflection, Transmision, and Color
    Color Addition and Subtraction
    Viewed in Another Light
    Pigments and Paints
    Shadows

    Visit the Curriculum Corner.

     
  • Labwork: 
    Simulations should always support (never supplant) hands-on learning. The Laboratory section of The Physics Classroom website includes several hands-on ideas that complement this Interactive. Four notable lab ideas include ...

    Color Addition Lab
    Taking Away from RGB Lab
    Painting with CMY Lab
    Filtering Away Lab

    Visit The Laboratory.
 

Additional resources and ideas for incorporating the Filtering Away Interactive into an instructional unit on Light and Color can be found at the Teacher Toolkits section of The Physics Classroom website.  Visit Teacher Toolkits.