A domino is a flat, thumb-sized rectangular block that is divided into two parts and each bears from one to six pips or dots. A set of 28 such tiles is the standard size for a typical domino game. Dominoes can be arranged in many ways, including in lines and angular patterns. A player takes turns placing dominoes in such a way that they match up with the ends of other pieces. The value of a domino is determined by the number of matching sides it has and, in some games, by the color of its pips.
While domino can be used as a recreational activity, it is also used to teach students basic addition and subtraction, to enhance reading skills by having students identify word elements such as capital letters, lowercase letters, and syllables, and to practice geometry concepts such as perimeter, area, and volume. The game is especially popular with elementary school teachers who incorporate it into a variety of classroom lessons.
In the field of business, the term “domino effect” is commonly used to describe the phenomenon that occurs when a single event leads to a chain reaction of subsequent events with greater and often catastrophic consequences. For example, a worker in an industrial plant may unknowingly tamper with equipment that has a safety system designed to prevent overheating. The malfunctioning equipment may cause an accident that causes the plant to shut down, leading to significant losses for the company.
A business leader may use the domino analogy to help employees prioritize tasks. The most important task receives the highest priority, and is given the full attention of the team until it is completed. In this way, good work will create a positive impact that will pay dividends down the line.
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While Domino can be played with any number of players, the most common are a few people who draw dominoes and place them on the table, starting with the first tile (determined either by drawing of lots or by who holds the heaviest hand). Then, each player plays their own tiles to the left or right of this initial tile, attempting to match up the open ends of the tiles in their hands with those of the adjacent dominoes.
In general, dominoes are stacked on end in long lines. When the first domino is tipped, it causes the next domino in line to tip, and so on until all of the dominoes have fallen. Some players create a very elaborate design, with curved lines and grids that form pictures when they fall, or even 3D structures such as towers and pyramids. Some artists also use dominoes as building blocks to create art.