Information about the title: The workbooks, aligned with the Jo-Jo language book and the Jo-Jo reading book, promote both interdisciplinary and subject-specific engagement in science education. The workbooks serve as informational books: phenomena, connections, and technical terms are explained in a way that allows children to acquire information independently. At the same time, the books emphasize action-oriented learning: open prompts, diverse suggestions for experimentation, and experiments encourage scientific work and invite exploration and wonder. Innovative presentation formats inspire children to document their knowledge. The tasks are marked at three levels (cube symbol) and include optional tasks to enable differentiated teaching. The children are always accompanied by the dog Jojo, who points out important elements.