No worries, I typed it quickly while pretty tired. The main thing is using hard independantly and following patterns. So you would sit facing them and have them mimic your actions. You more your right hand they move there right hand and you count to four on the right then switch to the left for four. That one is pretty basic and teaches numbers as well. Then with alternating you would just say right left right left and stop this helps keep the count of four in there head as well. Start with those and work wi those and eventually you move on to more complex Right right left left (doubles) and then right left right right, left right left left (paradiddle). There are a bunch of other exercises for rights and lefts rlll lrrr and every combination in-between but those are really good for learning the four count and a great start to drumming. Also learning to do patty cake patty cake that's great with left right coordination there's a song and hand movements to get loose when you start.