
A sure way to a kid's attention is through his stomach. Present a hamburger or hotdog as a graphical chart for a paragraph. The topic sentence is on the top bun. The tomatoes, lettuce, and meat with transitions as ketchup/mayo occupy the juicy part of the burger. And the conclusion seals the deal.
Make it short!
Paragraph talks about one subject.
Paragraph has 3 parts: topic sentence, body (details with examples), and conclusion sentence.
Topic sentence = subject + opinion
+
Subject = what are you talking about?
Opinion =
diverse, many, majestic, significant, important, amazing
Supporting Details 
Explain, prove, support, examples …..