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Figure-Ground Perception. Figure-ground perception is the ability to focus on one specific piece of information in a busy background. Visual figure-ground is the ability to see an object in a busy background; while auditory figure-ground helps a child pick out a voice or sound from a noisy environment. This article deals with the visual perceptual skill and offers some activity ideas to inspire parents and teachers!
Vocabulary undefined term point line plane collinear coplanar segment endpoint ray opposite rays postulate. The most basic figures in geometry are undefined terms , which cannot be defined by using other figures. The undefined terms point, line, and plane are the building blocks of geometry.