The comprehensive teaching package consisting of student volumes, teacher materials, and additional materials on CD-ROM offers a solution for modern, competency-oriented instruction. Volume 1 for grades 11 and 12 precisely meets the requirements of the new curriculum for FOS/BOS Bavaria effective from August 1, 2017. The clear chapter structure allows for planned, independent work: - Mind map with competency expectations according to the curriculum and corresponding outline points of the respective book chapter - Presentation of facts - Summary overviews - Questions for checking basic knowledge - Tasks and problems for the development and application of knowledge. The varying difficulty levels of the tasks facilitate internal differentiation. Competency grids after each main chapter train the ability for self-assessment. A teacher's manual with detailed solutions and background/additional information is available.