Read this poem:

in winter i get up at night
and dress by yellow candle-light.
in summer, quite the other way,
i have to go to bed by day.

what is the rhyme scheme of the poem?

aabb

abab

abcd

abba

answer:

aabb

explanation:

in gaia!

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.