The third learning unit cares about Windows file extensions.
An introducing reading part presents various common file extensions.
In the next step, the learner must bring together the fitting pairs: file description six file extension (a drag & drop assignment).
The smartphone learners were not satisfied with the given interaction. Since it was a drag & drop activity the missing pointing device 8and the imprecise use of the fingers on the touch screen) might be the problem.
Conclusion: Drag & Drop activities do better with devices with a suitable pointing device.