Confused Words

To/too/two, there/their/they're, your/you're, its/it's, whose/who's, then/than, lose/loose, advice/advise, affect/effect.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 20

Some words are easy to mix up, because they sound alike or look alike. A spell checker won't catch them, so you have to!
Whose asks who something belongs to. Who's is short for who is. Try the long form: who is ready? That works, so it's who's.
Than compares: a whale is bigger than a shark. Then tells when: we ate, and then we played.
Lose means to not have anymore, or to not win. Loose means not tight, like a loose tooth.
Affect is usually a verb: rain can affect our plans. Effect is usually a noun: the result. The medicine had a good effect.
Your turn! Tap the word that's wrong: A cheetah is faster then a lion.

Georgia's K-12 English Language Arts Standards:

4.L.GC.1.34 — Usage: Correctly use frequently confused words (e.g., to/too/two; there/their/they’re; advice/advise). (Master)
4.L.V.3.b — Demonstrate understanding of words by relating them to their synonyms, antonyms, homophones, and homographs. (I)