Do your primary children's EYES sometimes wonder when they should be looking at you?
I know mine do.
I make the motion for them to stand up, and only about half will stand up while the others are off in lala land ;)
So here's a fun idea to help them watch you.
Hold up "All eyes on me" sign before you are about to stand to sing. Every time you do this, wear a new pair of glasses.
Hopefully it will help!!!! crossing fingers..not eyes :)