“Curricula are of a laboratory nature, constantly open to experimentation, and therefore, fairly unstable and unpredictable. But their function is to stimulate interest and the effective use of thinking. Educational experience is real, it is happening „here and now”, and reality, according to progressivists, is changeable; it evolves. Therefore, the task of the experimental method is not to deduce the existing knowledge, but rather to induce pupils’ own ideas and to create knowledge. Values in progressivism, unlike their understanding in the previous two currents, are recognized as dynamic, temporary and changeable.” (Kostylo p.27)