Ramadan resources

All About Ramadan

Importance of Salah

How to offer Salah

As well as the moon cycle I think the cycle of the day (the sun and the course it follows) would be a nice idea to introduce to him seeing as I think I intend to teach him salah properly now ie. how to offer it and when (and why). He's almost 4 - should be doing at least one prayer a day with me...

Also some short surahs and ayats, try to get him to learn Ayat al Kursi (he knows the three Quls and fatiha), and some dhikr instigation...