- Added new lesson topics including 'Überlebenssätze - Teil 1', 'Familien-Gespräche', 'Gefühle & Zuneigung', and 'Überlebenssätze - Teil 2' to enhance the curriculum.
- Updated existing lessons with more detailed learning goals, core patterns, grammar focus, speaking prompts, and practical tasks to improve learner engagement and comprehension.
- Refactored core patterns to include glosses for better understanding of vocabulary context.
- Enhanced the structure of lesson didactics to provide a more comprehensive learning experience for users.