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mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} </style> <![endif]--><span style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,&quot;serif&quot;;" lang="EN-US">The aim of the article is to present a new possible way of an interactive teaching. The effort is to substitute proprietary software that is commonly used in educational process by open technologies. Since the subject of this article is oriented to the engineering area we devoted our attention to open software and we chose Maxima. Moreover, this tool can be available not only locally on the desktop computer or the notebook but also online via Internet. In the paper we also introduce examples of the implementation</span><span style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,&quot;serif&quot;;" lang="EN-US">.</span>