In our course of spanish for 6 to 12 year old kids we use the well recognized Planetino method to organize the content. It contains a lot of fun images, and games, and you child will like it.
For the children aged less than 9 years, we learn with childish songs and videos, the teacher will ask simple questions to check that the content was understood, and the child will learn new words graphically.
The grammar is also a fundamental part of the classes. We teach it through everyday life situations to avoid that the childe get bored. Also, we learn new words and vocabulary through games like Memory, or Hangman.