EDUCATIONAL PSYCHOLOGY

Chapter 12 page 283

c. Present

expository

examples/non

-examples in

matched sets.

Here is an example of a radius.

This is not a radius, because the line does not start at the center, although it does

go to the edge.

Here is another example of a radius. The line starts at the center and goes to the

edge.

This is not a radius, because although the line starts at the center, it does not go to

the edge.

This is not a radius either, because this line goes past the edge, even though it

starts at the center.

Here is one more example of a radius.

This is not a radius, because the line does not start at the

center, and it doesn’t end at the edge.