Simple habits for using crosswords so they build knowledge, not just fill time.
Use the built-in puzzles for general warm-ups, and your own imported lists for assessed vocabulary. The right words at the right time beat generic fun.
When students ask for an answer, read the clue aloud together instead. Nine times out of ten the clue teaches the concept they're stuck on.
Praise good strategy — “you filled the long word first, smart” — not only speed. Puzzle habits transfer to test habits.
Paper puzzles suit quiet individual work; a projected grid suits whole-class shouting-out of answers. Same puzzle, two different lessons.
A finished crossword is finished. Generate a fresh one from the same word list next week — new crossings make it a brand-new challenge.
A practical line: when importing your own words, use plain letters (A–Z) and keep words under 15 letters so they fit the grid nicely. Accented characters work best written without the accent marks.
The puzzle-lesson formula: pick the word bank → solve one clue together → students continue → reveal and discuss the words they missed → re-print for homework.