The study presents lessons learned in regular Science and Physics and Astronomy classes. The latter are related to an area of content – natural sunlight. An interdisciplinarity training is applied through STEAM–based learning approaches and methods: exploratory approach, experiential learning, learning by doing, small group work, etc. The opinion of the students with respect to the training was examined and presented in the study. Application of methods such as "Learning by doing", "Learning by experience" in science education is presented for: formation of natural scientific literacy, development of creativity related to making a solar device, applicable in direct teaching process. Attention is paid to the application of the above-mentioned approaches and methods as the main motivating tool responsible for building teamwork attitudes, support as well as cooperation among the students in primary school. The main purpose of the presented innovative learning approach is to make the teaching of natural sciences more fascinating for students which leads to better assimilation and durability of the new knowledge.