The math book 1 comes with sturdy cardboard worksheets. For grade 1: number line up to 22, one-plus-one mental math trainer, geometric tiles, play money, tens and twenties field with corresponding flip tiles. New are the mental math trainers. With these, children can determine the results of their tasks and check their practice exercises themselves. They allow for the examination of entire series of tasks. This way, patterns can be recognized and understood. Not only individual tasks are practiced, but they are also interconnected. This contributes to a quick and effective automation of basic addition and multiplication.