First section of the reading/writing supplementary book: self-
introductions, heißen/kommen/wohnen/sein conjugation, a family
registration form (reading + guided writing), sentence/word boundaries,
capitalization rules, and formal vs. informal address (pp. 5-11).
This PDF's official Lösungen pages are missing from every copy found
online (all mirrors trace to the same cropped scan). Answers in this
section are marked [abgeleitet] (derived, unambiguous) or [offen]
(genuinely open-ended) rather than sourced from a publisher key.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>