Using toponims and names to learn alphabet is a brilliant idea!
It really helps initially when you don't know many words yet, and I even think there could be more exercises with them! All kinds of them - Mikes and Bills and Kates - they all can be big and amazing and happy and what not! It's also so entertaining to find out the meanings behind the Arabic names! Like I had no idea that Karim Benzema was generous by name! Or that there are so many happy people out there! Thank you Duolingo!