In my opinion it’s better to have immersion in the class of English than translating a new word of the new vocabulary from their mother language.
Give it a try. Use the whiteboard or whatever as an aid.
Even tell some classmate to explain to someone who hadn’t understood, on his own words. If he says the word in their mother language, you could say ok, and now try to say it in English.
Thus we create an atmosphere where English is the vehicle to communicate to one another. / Photo from: 2012 London olympic-games-throw cyrushosteller com