摘要：The article describes the results of use of tools "Trace" and "Locus" in dynamic mathematics software. Examples of solutions of stereometric locus problems to construct static traces in software GeoGebra5.0, Cabri3D and plane geometry problems to construct both static traces and traces that are perceived as independent dynamic objects in software MathKit and GeoGebra are given. Attention is focuses on the differences of the actions of these tools. Author notes the possibility of forming a logical and constructive thinking with their use.
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