The period of registration in primary school is usually announced in kindergartens, primary schools and in the press. The child must be registered in the elementary school responsible for the residential district. For the school registration, the identity card or passport of the parent or guardian and the birth certificate of the child are required (https://www.berlin.de/sen/bildung/schule/bildungswege/grundschule/anmeldung/).
In February of each year, parents register their child in the secondary school of their first choice. They can also specify a second and third wish. If the child cannot be admitted to the school of the first choice due to lack of space, he / she participates in the admission procedure for the second or third choice school. When registering for the first-choice school, the registration form and the prognosis of primary school for the further support of the child must be submitted (https://www.berlin.de/sen/bildung/schule/bildungswege/uebergang-weiterfuehrende-schule/#anmeldung).
For admission to a secondary school after grade 4 of the primary school special conditions apply. The children have to take part in a test procedure.
https://www.berlin.de/sen/bildung/schule/bildungswege/uebergang-weiterfuehrende-schule/#anmeldung