Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Successful science education requires a knowledgeable teacher, a challenging curriculum, and teaching methods that actively engage students in a learning process that evokes the scientific method.