In Germany we have three differents kinds of schools after elementary school, in which the pupils have the possibilities to be taught according to their abilities. It lasts up to the 10th class. It lasts up to the 9th form. The transitions between the three schoolforms are made easier by means of unified numbers of the different courses well-suited syllabuses and coordinated lessons possible attendance at specific lessons of a different schoolform support for changings between the schoolforms with special courses.
All teachers teach in all three schoolforms.