Tablets with touch-screens, multi-touch interfaces and various sensors are becoming increasingly common. More and more schools are testing them with their pupils in the hope of bringing pedagogic benefits. Thanks to this new type of device, new sets of interactions can be thought of. Many studies have tested user reception of innovative interactions. At the present time, pedagogic benefits can be evaluated to resolve 3D geometry problems. In this paper, we used an already accepted set of interactions to manage rotation of solids and we evaluated its pedagogic benefit on a test group of learners aged 9 to 15. We propose a protocol based on mathematics didactic and pedagogy. We compared the set of interactions with classic sheets of paper and solids. Our results show that using our set of interactions increase significantly good answers.