Category: D

Water pollution from large areas.  

The deflection of light waves when passing through narrow slits to form fringes of partial light and dark bands. The change occurring in light when it passes through crystals, prisms, or parallel bars in a grating, in which the rays are deflected and thus appear to be turned aside. This produces dark or colored bands…

Children whose temperament patterns include irregularity of timing, withdrawal from new events, unusually intense reactions, frequent expressions of negative mood, and slow adaptability, easy children.  

A theory of perceptual learning that attributes change to increasing sensitivity to properties of stimulus that children learn to differentiate with experience, rather than to learning new responses.  

Education personnel, selected, educated, and deployed so as to make optimum use of their abilities, interests, preparation, and commitments. It gives them greater opportunity and autonomy in guiding their own professional growth.  

Instruction and learning activities that are uniquely and predominantly suited to the capacities and interests of gifted students.  

The ways in which parents and others react differently to children and reinforce different behaviors for the two sexes.  

In education, extra pay or incentives (added standard increments) awarded to teachers on the basis of merit.  

A medium developed to elicit a specific characteristic of an organism or group of organisms.  

Pertaining to membranes that allow some substances to pass through more readily than others.