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  ______   __   __              ______    _____   
 /_   _//  \ \\/ //     ___    /_   _//  /  ___|| 
   | ||     \ ` //     /   ||   -| ||-  | // __   
  _| ||      | ||     | [] ||   _| ||_  | \\_\ || 
 /__//       |_||      \__ ||  /_____//  \____//  
 `--`        `-`'       -|_||  `-----`    `---`   
                         `-`

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Text this: Development of a Gamified Number Line App for Teaching Estimation and Number Sense in Grades 1 to 7