Collection of ideas and methods for teachers in secondary schools, subject: Mathematics, grades 5-10. Mental math football, place mats, function dominoes, and city-country-fraction: With these and other "appetizers," you are guaranteed to start individual lessons or teaching units in a varied and motivating way. With these action-oriented ideas, mathematics will not become an unwanted problem subject for your students! The most important curriculum topics such as numbers, measurement, functional relationships, data and chance, as well as space and shape, are introduced through creative tasks. All lesson introductions are clearly described with information on topic, grade level, duration, and materials. The "appetizers" are complemented by necessary photocopy templates at the appropriate points. This way, you can engage your students without extensive preparation!.