For a child entering 5th grade in Lower Saxony, what are the main differences between a Realschule and an Oberschule, including their grade levels, educational focus, and what qualifications students can earn after completing 10th grade at each school type?
Navigate to the 'Unsere Schulen' section. From 'Unsere Schulen', navigate to 'Allgemein bildende Schulen'. Locate and extract the grade levels and educational focus for 'Realschule'. Navigate to the 'Oberschule' page and extract its grade levels and educational focus. Navigate to the 'Abschlüsse im Sekundarbereich I' page. Identify and extract the highest qualifications obtainable after the 10th school year that are applicable to both Realschule and Oberschule.
State that a Realschule covers grades 5-10 and focuses on an extended general education with practical relevance and independent learning. State that an Oberschule covers grades 5-10, can include or lack a 'gymnasiales Angebot', and aims to provide a basic, extended, or in-depth general education, preparing students for professional or academic paths. Confirm that both Realschule and Oberschule can lead to the 'Sekundarabschluss I – Realschulabschluss' and 'Erweiterter Sekundarabschluss I' after the 10th school year.