For the last 3 years I have hatched chick eggs in my First Grade classroom. I would usually put in about 32 eggs and prayed for 12 to hatch. This year I spent considerable time on the BYC message board taking advantage of all the experience here. I am proud to say that out of 24 eggs this year, my class hatched 21. I know that is not as successful as many of you experts, but we are excited. I really appreciate all the advice here. I think it really helped.