17 ms·My wonderful English teacher gave extra credit on correcting her own worksheets.by bitJericho 10y agoMy wonderful English teacher gave extra credit on correcting her own worksheets.marak830 10y agoThat is a genius idea. I might float it past one of my head English teachers!newjersey 10y agoWe had the same in the differential equations class. Attention and participation jumped and stayed up. Very interesting.