At the beginning, I wanted to repeat with them everything they know about Australia. As far as factual concepts were concerned, the children had a really great knowledge. However, they were unable to give clear answers to questions such as "why is the desert where it is?" This gave me space to force them to think critically and look in the atlas for the reasons that led to the occurrence of deserts, forests, etc.
However, they were unable to give clear answers to questions such as "why is the desert where it is?"