Falling problems: Background Information |
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| Summary | Falling problems is based on the well known game Tetris. Before you start this game, you have to make two choices: the difficulty-level of the game (0-20, 0-200) and the operation. You can choose from: addition, subtraction or a combination of these two. Estimate if the values are higher or lower than the value on the red line (10,100). Move the problem to the corresponding half of the field. |
| Subject | number, estimation |
| Age Group | primary education |
| Programmer | Stephan Wiegers, Patrick van der Wal |
| Author | Frans Moerlands |
| Version | revised version |
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