Click And Teach
CAT1 engages with the question “What Are Things Made Of?” and posits that big things can be made of lots of little small things, like a beach is made of lots of sand grains.
Students then explore the effect of magnification using powerful magnifiers and microscopes on various interesting objects. They can see that things look very different when they are magnified. A coloured photo is really a collection of little dots, which is a good analogy for atoms.
The concept of magnification power is also elaborated.