Native English conversation or formal classes

I am native English student now studying here in Madrid and have some free time some afternoons. I'm looking to teach kids below the age of 18. 
I am offering English conversation classes or more formal grammar lessons. 
Preferably wednesdays between 12 - 3:30/4pm and Friday's after 3pm. 
If you would like to request an alternative time , please contact me and we can discuss. 

15€/hour with previous experience. I am also bilingual.