We present a mobile application designed to enhance students' understanding of directional derivatives and level curves in first year's calculus. The application offers visual tools and gamified learning to provide an engaging educational experience. Using novel technologies such the application is able to take a users drawing, generate a corresponding 3D model, and display this to the user. Through this presentation, attendees will gain a comprehensive understanding of the application's features and the benefits it offers to students in comprehending directional derivatives.@en

We present our short series of interactive animations on directional derivatives and level curves. This visualisation was developed for students of first-year mathematics courses at the Delft University of Technology. The interactive animation is an animated video that can be interacted with while it is paused or playing. The user can change, for example, the function that is plotted, drag points of interest or change the angle of the camera to explore the scene. @en