This series, "Mathematics for the High School," in mathematics was specifically designed with math teachers in mind. Not only are the books a useful resource for gaining familiarity with teaching approaches used in a Waldorf school, but they are also a source of inspiration - offering fresh perspectives and new insight - for course that have perhaps been taught many times. This book contains experienced teachers' suggestions for lesson blocks covering topics taught in the 10th grade in the Waldorf curriculum. - Sine, Cosine, and tangent - 10th grade trigonometry - Surveying in the 10th grade - Higher calculations - Logarithms and logarithmic spirals - Pascal's triangle and related geometry - Numerical relationships in music - The method of resection The material is not only described theoretically, but includes many examples, exercises and "hands-on" hints for the lessons. Some information about the historical background of the major themes rounds out many of the contributions.