Information about the series edition: Fredo, the curious coati, guides through mathematics with tips and stimulating questions. Teach with Fredo in a differentiated way: With exercises at three levels: essential tasks for all students, simple tasks for children who need preparatory exercises, and challenging tasks for more advanced children. Each child works at their individual level on the open tasks in the learning journal. Teach with Fredo in a structured way: The clearly structured pages always focus on a topic or a context. Less is more: Thanks to recurring exercise formats, there is less need for explanations, allowing more time for the children. Language corners ensure the necessary mathematical terms - easily recognizable by the little dog. Workbook - optionally with interactive exercises.