Report Open Access

Learning Effects of Arithmetic Problem Solving while Unlocking a Mobile Phone

Lindemann, Oliver; Fischer, Martin H.

This report evaluates the effects of using the mobile phone application ”Unlock Your Brain” on arithmetic fact retrial. The application replaces the standard phone lock screen and requires users instead to solve a simple arithmetic problem to unlock the device for use. More than three million responses to addition problems were analysed and revealed that the users’ problem-solving efficiency increases with number of performed unlocking actions.

 

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