Добрый вечер!

There are some other information and exercises here – Приветствия – Часть 1 (part 1) задания (exercises) 1,2,3
Now you know the names of the letters, but the letters are pronounced in different way.
Let’s see here the main rules of the pronunciation:
Phonetics – https://learnrussian.github.io/phonetics/
First of all I recommend to start learning Russian from watching video with alphabet.
These videos you can watch with your children and then you can find some games below. 🙂