Do you want to learn but are too tired to open a textbook or read from a screen? Answer a crossword puzzle instead! Treat these puzzles as more effective means of learning because they are chopped up into just the essentials. The short clues are very targeted so you remember the answer right away. If you don't know the answer, then it's easy to find it yourself.
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Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.