19 grammar categories + Mixed Version · 2–4 teams · say the turn, then build your castle
Castle Builder · sentence turning
Choose one grammar category to practise only that category. Tricky Verbs stays with irregular present and past verbs. Categories mix only when you select Mixed Version. Read the sentence, say it in the new form, then build a castle.
One choice at a time. Selecting a grammar category turns Mixed Version off.
One tap button per team on the building screen.
Tap to rename. Leave them as colours if you like — young classes can say the colour.
These stay set for next time on this computer.
Space reveal the answer · B go to the castles · 1–4 give the block to that team · N next question · W who's winning · Esc close
You'll go back to the level menu and every castle goes back to zero.