Not only is science perceived by some as a hard-to-teach subject, but there are certain topics that all teachers regard as notoriously hard to teach. While their natural inclination may be to eliminate some of the details, teachers have to be careful not to water down the curriculum. How do they share the complexity of the natural world without…

Discusses traditional school demonstrations and experiments in hydrotropism. Explains that these experiments seem to "prove" hydrotropism, but yet most botanists reject hydrotropism. Teachers continue to teach the concept because it is logical and the experiments are simple. (PR)