By planning and selecting the contents of subject technology we must take into account also the contents from environmental education. Combining the different contents are compose from the process of planning, analyzing and/or evaluating achieved result. In the frame of the selected educational strategy (for example Project task) the students must acquire and strengthen the theoretical and practical knowledge, develop skills and working habits. Only if we take into account this, they will be able to transfer this theoretical and practical technological knowledge to solve the ecological problems. This is the teaching and learning in the narrow sense, which we can classified as acquiring new, knowledge, tasks and skills necessary/for solving the problems.
Learning in the wide sense means preserving knowledge and recalling it back, the knowledge that is connected with technical, technological, organizational and ecological problems.