'in this game, you try to reach the goal without hitting the obstacles.',
'in this game, you try to reach the goal without hitting the obstacles together. ',
'in this game, you try to reach the goal without hitting the obstacles together.',
'in this game, you try to follow the curve from start point to end point together. ',
'in this game, two of you try to follow the curve.',
'in this game, you try to follow the line, taking both robots in your hands. ',
'in this game, you try to guess the parameters that your robot follow the line. ',
'in this game, you try to guess the equation of the orange line. In the list,',
];
List<String> instructionString = [
' The obstacles are only shown on the tablet. In each turn, two of you play with the two robots and one person looks at the tablet and can guide two persons with robots',
' The obstacles are only shown on the tablet. In each turn, two of you play with the two robots and one person looks at the tablet and can guide two persons with robots',
' The obstacles are only shown on the tablet. In each turn, two of you play with the two robots and one person looks at the tablet and can guide two persons with robots',
' The curve is only shown on the tablet. In each turn, two of you play with the two robots and one person looks at the tablet.',
' The curve and start and end points are only shown on the tablet. In each turn, two of you play with the two robots, as shown in the video',
' The line is only shown on the tablet. In each turn, one of you play with the two robots and then another group member takes the turn by pressing starting again. ',
' The line is only shown on the tablet. In each turn, all of you play fill the parametrs on tablet.',
' In the list, when you click on an equation, the simulation of virtual robots shows your guess. In each turn, two of you play with the two robots and one person looks at the tablet and can guide two persons with robots. ',