The cooperation between kindergarten and primary school is becoming increasingly important: for educators and teachers, for parents, and especially for the school starters themselves. Through joint cooperation sessions, all parties involved can prepare the children’s transition in such a way that they start the 1st grade without fear and with the best possible preparation. This volume provides all the essential information needed for an immediate start in cooperation, including concepts and collaboration, parental involvement, and potential challenges. The experienced authors also offer ready-made, tested cooperation sessions on important topics in educational and teaching plans. Together, the children engage with numbers, shapes, and patterns, as well as with the first foundations of our language and writing. They playfully move around or practice in K.