We present building blocks equipped with electronics for educational purposes. The blocks have changeable colors, a simple LED screen, and a mechanism for decentralized communication between blocks that touch each other. Using these simple elements, we introduced functionality to implicitly support the development of prenumerical skills of preschool children without detracting from the primary ...

This paper presents a distributed virtual reality environment for children called EVE— Environnements Virtuels pour Enfants. The virtual environment architecture is reactive agents based. The FCM-like dynamic action planning mechanism assures agent’s adaptability to its environment changes. This virtual environment supports cooperation among members of a dispersed team engaged in a concurrent c...

We report an experiment on the covered response ultimatum game, in which the proposer is not informed about the responder’s reaction to an unequal offer. In this game, no education of proposers is possible. A control experiment with informed proposers was also conducted. We observe high rejection rates with covered response. These are explained by responders’ resistance to unfairness. But the r...

Our aim was to develop an easy to use JavaScript library that allows a teacher student or a teacher, who knows only basics of HTML and JavaScript, to implement little educative applications similar to Bebras interactive tasks. Using the method of design-based research we developed such a library and named it sprites.js. In our paper we describe the experiments with the library, which focused on...