Science Teaching Series  Internet Resources  I. Developing
Scientific Literacy  II. Developing Scientific Reasoning  III.
Developing Scientific Understanding  IV. Developing Scientific
Problem Solving  V. Developing Scientific Research Skills  VI.
Resources for Teaching Science  Color- Blindness   VISUAL
ACUITY: A person who has sufficient visual acuity should see the
number twelve in the circle on the left whether or not they have
normal color vision. I   COLOR BLINDNESS: A person with normal
color vision sees a number seven in the circle on the left.
Those who are color blind usually do not see any number at all.
RED-GREEN COLORBLINDNESS: People with red-green color blindness
see either a three or nothing at all. Those with normal color
vision see an 8.   PROTANOPIA & DEUTERANOPIA Those with normal
vision see the number thirty-five in the circle above. A person
with protanopia sees only he number five. A person with
deuteranopia sees the number three. People who are partially
color blind will see both numbe