The next Caribou math contest will be on Wednesday, Jan 16.
The next interactive question will be Tower of Hanoi which your children can practice now on the games page https://cariboutests.com/games/towers_of_hanoi.php
There WILL be a history question about Rene Descartes. Students can read about him on the history page. For grade 3/4 students it will be enough to read and know the first few sentences. https://cariboutests.com/public/history_en.php#descartes