In this activity, learners investigate color vision as well as plan and conduct their own experiments. In "CLASS EXPERIMENT," learners discover that afterimages occur because of properties of cells in the retina and because of the way nerve pathways carry color information to the brain. They learn basic facts about photoreceptors, nerve connections, and opponent colors. In "TRY YOUR OWN EXPERIMENT," learners design experiments, investigating, for example, how skillful people are at distinguishing gradations of color and how color helps us discern objects in a scene. This lesson plan includes background information and guides for educators and learners.
Keywords:seeing,Data Analysis,NSDL,color,Data Representation,Biological science,brain,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-056,Space Science,sight,Representation,Mathematics,General,Social Sciences,Psychology,Communicating Results,Perception,eye,Upper Elementary,Engineering,Human Senses and Perception,Reasoning and Proof,High School,oai:nsdl.org:2200/20110926115519940T,Elementary School,Gathering Data,Life Science,General science,Human Body,Informal Education,Middle School,photoreceptors,Formulating Explanations,Data Analysis and Probability,Cells,retina,Problem Solving,optical,Data Collection,Health/Medicine,Physical science,Conducting Investigations,neuroscience,Chemistry,Physics,Vision,Lenses and Mirrors,opponent colors,Education,Probability,Technology,afterimage,Sunlight and Color,The Brain and Nervous System,Science and society,Asking Questions,Measurement,The Design Process,nerves,Light and Optics,optics,The Scientific Process,vision,Cell Structure and Function