As part of the week of primary classes, pupils of the 3rd ”A” class had an open lesson in natural science. Topic "Where is food digested?”. During classes, pupils worked individually, in pairs, groups. Using Word wall, we watched interesting videos related to the topic. In the course of the work , the methods were used “Opening of eggs”, “Mosaic",”Table of names", “Three questions", addition of a drawing, etc. During the warm-up, they danced a neuro gymnastic dance. The lesson has achieved its goal.