Explain a Topic Clearly

Write informative/explanatory text with grouped information, facts, definitions, concrete details, precise vocabulary, transitions, and a conclusion.

How the lesson starts: Explain a Topic Clearly

Bolt meets popcorn
On Planet Zib, robots have never seen popcorn. Bolt the robot must explain it to them. His first try said, popcorn does stuff when it gets hot. The robots beeped in confusion. Bolt needs a clear start.
Start with a topic sentence
An explanation starts with a topic sentence. It tells the big idea of the section in one clear line. It's not an opinion, not a question, and not one tiny detail.
Bolt picks one
Bolt's section is about how popcorn pops. He tests each sentence. Best snack ever? Opinion. Ever eaten popcorn? Question. Some kernels are yellow? Tiny detail. Popcorn pops when water inside it turns to steam. That tells the big idea!