A better rule
- Look up a word if the sentence does not make sense without it.
- Skip a word if you still understand the paragraph.
- Save a word if you expect to see or use it again.
- After the paragraph, say the meaning in your own words.
FAQ
How many unknown words is too many?
If every sentence needs several lookups, the text is probably too hard for smooth reading right now. Simplify it or choose a shorter excerpt.
Should beginners read real German books?
Beginners can read short excerpts, graded stories, or simplified pages. Full native books usually become more useful around A2-B1 and beyond.