Vocabulary Mashup using Online Resources and Games for Vocabulary Training at School Topics: Authoring Tools and Content Development; e-Learning Hardware and Software; e-Learning Platforms, Portals; Game-Based and Simulation-Based Learning; Mobile Learning; Pre-K/K-12 Education; Tools for Educational Communication and Collaboration In Proceedings of the 11th International Conference on Computer Supported Education - Volume 2: CSEDU, 519-526, 2019 , Heraklion, Crete, Greece