Comment: Re:well done kids! (Score 4, Insightful) 322
You are obviously not a teacher although you may well be a scientist. Teachers either tell the kids what to do or encourage them to explore and THEN discuss results/flaws/improvements. After 33 years as an educator I can assure you that the latter is the most effective method and is a better preparation for pre-tertiary science. In addition I'll bet that the first "scientists" did not think about controls, they just collected evidence. This experiment is just that, a collection of evidence.