We present Toccata, a system supporting the management of rich multi-device pedagogical activities. Activities designed with Toccata are reusable, shareable and adaptable to the situation. Teachers face numerous challenges in designing and scripting pedagogical activities that incorporate rich media and applications, combine devices, group formations, and spaces. They also face challenges in orchestrating these activities in class, especially to guiding learners, following their progress, and maintaining a coherent learning experience. Our demonstration will showcase how Toccata answers these challenges by supporting individual or collaborative activities, in class or outdoors, under diverse technical conditions, e.g., offline on mobile devices, or fully connected with Desktop computers.