Information about the title: Working in a structured and differentiated manner. Differentiation: The tasks are clearly divided into three levels of differentiation. Repetition: Review tasks reinforce the material and prepare for new learning content. Self-assessment: Solution numbers, solution words, and number images assist with self-assessment. Problem-solving: The approach to word problems is developed step by step. Project ideas: For each school year, there are interdisciplinary project ideas. Information about the series: Learning together, but differentiated, with the new Math Friends. The teaching material Math Friends is part of the Friends network. It connects the practical experiences of teachers with new insights from primary school pedagogy. The new edition practically implements the demands for inclusion: In addition to the tried-and-true components of the teaching material, there are now two additional elements.