Erase two words....sort of!

I was reviewing I Believe in Christ with our Senior Primary on Sunday and had written the words out on the board and we started the standard "erase 2 words at a time" review. They were doing fine, but then I had an inspiration on how we could do it differently. Instead of singing all the words, and trying to remember the ones we had erased, I had them sing ONLY the words that had been erased. It was tricky, but they did AWESOME. It went something like "___ ____ _ Christ, ___ __ my King! ___ all ___ heart" etc. It was the best when there were only a few scattered words here and there. When I erased the last few words and the whole board was empty they went back to their half-hearted singing. My Primary President even commented to me afterwards how well they did. We will definitely be reviewing this way again!