Teaching kids about plants

How to make plants stick in the mind.

Cattleya walkeriana When teaching about plants, science educators struggle with several problems in science or botany courses. Learning about plants is perceived to be less interesting than learning about animals, photographs of plants in textbooks are less numerous and less diverse than photographs of animals and attitudes toward plants are neutral rather than positive. Students also have serious misconceptions about the physiology of plants, and their abilities to name plants are limited. There is evidence that females have better knowledge about plants than males and that females appreciate plants more than males. A recent paper looks at the best way of teaching students about plants.

The study has several implications that should be taken into consideration in botany lessons. First, visual, colourful presentations of plants should include exposure of their fruits or seeds that promote information retention. In particular, contrasting colours of fruits may increase student’s attention, interest and consequently information retention about these plants. Second, talking about plants should contain survival-relevant information. This information includes plant edibility, the presence of toxic substances, medical importance of plants and incidences that can cause human death. For example, the hemlock (Conium maculatum) lacks any attractive seeds or other features potentially attractive to children, but the story of Socrates who was given a potent infusion of the hemlock and died can positively influence retention of information about this species. Finally, there was some evidence that the children involved in the research associated red colour with a fruit being edible, and black or green colours with toxic fruits, although this was not conclusive. Teachers should teach children that plants, similar to animals, possess aposematic, warning colours, and unknown fruits (with contrasting colour) should not be consumed.



AJ Cann

Alan Cann is a Senior Lecturer in the School of Biological Sciences at the University of Leicester and formerly Internet Consulting Editor for AoB.

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