A quarter turn is one of four equal parts of a full turn, changing an object’s direction by a right angle so that it faces a perpendicular direction; it may be made clockwise or counterclockwise. The relationship can be recognized in familiar orientations and diagrams, such as moving from one position on a clock face to the next, without requiring degree measures or more advanced angle calculations.
A quarter turn is a turn that moves something to the next direction. It is one of equal turns in a full turn.
You can turn:
Example: An arrow points up. Make a quarter turn clockwise. Which way will it point?
So, after a quarter turn clockwise, the arrow points right.
A quarter turn always changes the direction to a direction that is perpendicular, or makes a corner like the corner of a square.
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