1. Bell-Ringer, Sensation & Perception 1) Rods and cones are both cells in the eyes. How are they similar and how are they different from one another? ) What is your favorite color? What do you think is the most common favorite color?

2. Bell-Ringer, Sensation & Perception 1) Rods and cones are both cells in the eyes. How are they similar and how are they different from one another? - Similar – Both are receptor cells, they are both located in the retina. Different – rods see black/white/grey while cones see color and sharp detail. There are more rods, and cones are located in the center of the visual field while rods are concentrated in the peripheries. 2) What is your favorite color? What do you think is the most common favorite color? - University of Maryland sociologist Philip Cohen asked nearly 2,000 men and women: "What's your favorite color?" Blue turned out to be most popular across the board, followed by green for men and purple for women. Red was the fourth most popular for both men and women.

3. Concept previews/extensions
Website: Wikipedia – Color Vision,
Website: Ask A Biologist – Seeing Color,
Website: Webvision – Color Vision By Peter Gouras,

4. Bell-Ringer, Sensation & Perception 1) In subtractive color mixing, the combination of red, yellow, and blue creates __________; in additive color mixing, the combination of red, Green, and blue creates __________. A) White; white B) Black; White C) Yellow; green D) White; Black   2) If you stare at a red square and then shift your eyes to a white surface, the afterimage of the square is… A) Yellow B) Red C) Green D) Blue ?

5. Bell-Ringer, Sensation & Perception 1) In subtractive color mixing, the combination of red, yellow, and blue creates __________; in additive color mixing, the combination of red, Green, and blue creates __________. A) White; white B) Black; White C) Yellow; green D) White; Black   2) If you stare at a red square and then shift your eyes to a white surface, the afterimage of the square is… A) Yellow B) Red C) Green D) Blue

6. Concept previews/extensions
Video: Vsauce, - This is Not Yellow,
Video: Vsauce – Is Your Red the Same as My Red?
Website: WorqX – After Images,