[sagrerasonia]

You could play memory, children love it.
You just need flashcards (with the pictures you want them to learn) and labels (with the written words). Display the flashcards in one side of the blackboard and the labels in the other side.
Write numbers or letters next to each flashcard and label.
Your students must tell you 2 letters or numbers or, if you have mixed both a letter and a number, take the flashcard and the label your students said and see if they match, if not put them back again and ask for another flashcard and label