Magnifying glasses of all shapes and sizes are a key outdoor learning resource. Although traditionally associated with investigative science, they seem to appeal to children for their play value.
Every year in the village of Egremont, Cumbria, the World Gurning Championships are held. This involves put your head through a horse collar and pulling the worst face you can possibly manage. Here’s some typical entries.
Using a fresnel lens or a magnifying glass, can provide a similar competition. Have a look at these examples:
Aside from the joys of gurning, children will pick up and use magnifying glasses in all sorts of explorations…
My collection of magnifiers also includes the kaleidoscopes that mimic the lenses in house flies eyes, binoculars, miniature toy telescope, an old camera lens, prisms and a rock hunting pocket lens which is very small but powerful. What do you have in your collection of lenses?