Today, children are the users of information technology, but they do not know what the road is doing to come to this development of this very important field of human society development. So, I decided to give this project theme, developing it based on PBL. Pupils for a week in co-operation with each other, brought the materials found in the project development schedule. For the first time I saw such a fruitful collaboration among my pupils. Thanks to this online course on Project Based Learning.