Seeing Is Believing Statistics In Your World 
Student Notes
Teachers Notes

What Is It?
Things aren't always what they seem. Magicians seem to do impossible tricks. They fool us.

a What is this drawing?

b How many cubes are here?
Turn the page upside down.
c Now how many can you see?

d How many rods does this object have?
Are you sure?

e Could a carpenter make it?

Our eves can be deceived. These are just tricks for fun. At times seeing accurately can he more important. For example, science needs accurate observations.

The next two sections are about illusions. Illusions can deceive the eye. You will see which deceive most pupils in your class and measure the effect of some of them.

 

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