The first goal was to provide a Moodle-based authoring tool (AuTo) for randomised interactive and dynamic multimodal mathematical tasks with automatic adaptive feedback.
For this purpose, the Moodle plugin STACK was extended to enable GeoGebra applets in mathematical questions. This means that applets can be randomised like generic STACK elements and can appear both in the task and in the feedback area.
The code is part of the moodle plugin STACK since version 4.5. Download here: Click