Scrabble Showdown set of 16 letter tiles are placed on the board. A randomizer then causes tiles to light up. Each team is allowed to stop the randomizer; a team starts the final round with the regulation value of the tiles that they stop the randomizer on; the number of tiles that the randomizer lights up is the number of "Bonus Scrabble Tiles" that the team had earned from the three previous rounds. This becomes their "head start" score before playing "Scrabble Lightning". The game is played on a regulation Scrabble board with only the double and triple-word score spaces (the double
Steel square be made of aluminum or polymers, which are light and resistant to rust. The longer wider arm is two inches wide, and is called the blade; the shorter narrower arm, is one and a half inches wide, and is called the tongue. The square has many uses, including laying out common rafters, hip rafters and stairs. It has a diagonal scale, board foot scale and an octagonal scale. On the newer framing squares there are degree conversions for different pitches and fractional equivalents. Framing squares may also be used as winding sticks. In traditional timber frame joinery, mortises and tenons