The concept of uniform tangent sets was introduced and discussed in [3]. This study is devoted to their further investigation and to generalization of the abstract Lagrange multiplier rule from [3].
In this article is presented the usage of a dynamical software product, with which can be created applets concerning the world of spices. The dynamical product allows experimenting with the parameters of the objects, their positions, colors etc. Today’s information technology can be used in different areas of knowledge and motivate the students. The application of GeoGebra in the educational process can help the development of digital competences.
A game with central symmetry on a rectangular board, created with Unity3D, is presented. It is available for both PC and Android with mixed reality. The purpose of creating the game is to provide conditions for the development of digital and mathematical competence in students through play in both formal and non-formal learning. Four options are described, depending on the presence or absence of animation, as well as the limitation of working time.
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