Experience gained from the development of a library for creating little on-line educative applications

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 several different groups of participants and their experiences with library sprites.js. In each of the group we examined both the process of creating the applications as well as the created applications themselves. The result of our work includes the library sprites.js, the course of JavaScript for teacher students, the new tool for implementing interactive tasks for our Bebras contest, and our knowledge that users with little programming experience can develop little educative applications when using a properly designed library.