Math teacher Natalija Križanac Momčilović and the 8th grade students 

The 8th grade Earthlings, Ela Zeljko, Lara Guberina and Petar Glavaš, took us with the alien Allie on a space journey where Alli's alien friends were introduced and other 8th grade Earthlings reminded about the Earth's motions – rotation and revolution. Allie, in fact, suffered a space traffic accident – a meteor hit his spaceship and damaged it, and he needed the help of an alien friend who would come to his rescue and repair his spacecraft. But in order to calculate precisely when and where it will land, they need to learn something about how the Earth moves. Alli's earthly friends, Ela, Lara and Peter, stepped in to help. They explained in details to all of us the way, the importance and consequences of Earth's movements, and with a short quiz they finally checked if we had listened carefully to them. They successfully accomplished their task because Alli's friends soon arrived and repaired the spacecraft. Allie managed to move on to space adventures and – who knows – until some next encounter with his new friends from this beautiful planet of ours...