Question

El ______ de la escuela flotante debe ser parecido al de un barco grande.

Answer 1

If you need this translated here ya go. Si necesitas traducido, aqui esta:
The ________ of the floating school must be similar to one of a large boat. 
If not, please give me some choices and I will gladly answer this for you. :)
Si no, dame unas elecciones y con mucho gusto te ayudare. :)
Espere que ayude! Hope this helped!

Answer 2

El timón de la escuela flotante debe ser parecido al de un barco grande.

Timón in Spanish is a helm. Since the floating school is a ship and a big ship is a ship. The thing that they have in common is that both have a helm.