Throwing to the Un-covered receiver with a Quick Screen?

I would simply explain to my kids that if you can get 4 yards before you make contact with any defender you are uncovered. Usually this is based on the depth of the safety or the leverage that the inside receiver has on the OLB.

I have heard of this run 2 ways. #1 use hand signals or code words between the QB and the WR. #2 Give the QB and receiver free reign to use it when ever possible. By this I mean, tell your receiver that if they are uncovered to expect the ball within the first 3 steps of their route. If the ball is not delivered, tell them to continue on the path of their original route.

On any pass play, our QB has three reads before the snap of the ball in this order: #1 throw the hitch anytime you have an off corner (take all the free yards you can get), #2 throw uncovered to force the defense to spread out and cover down on receivers, #3 throw the bubble to any slot receiver that has inside leverage on the OLB. These three reads pretain to only 1st and 2nd down. On 3rd down, use best judgement. I understand that many people do not want to give their QBs this type of freedom but remember that your kids will do what they are taught. Hope that helps.