Robin L. Simmons
Grammar Bytes: Word Choice: Exercise 2: Their, There, and They're
Complete these 20 sentences by typing the correct form of their, there, and they're.
Soft Schools
Soft Schools: Confusing Words: Their/there/they're: Who's/whose Quiz
Clear up the confusion of troublesome verbs with this interactive Language Arts skill-building site. Students' engage in quizzes that tackle grammar usage and the confusing verbs: Their/There/They're and Who's/Whose.
Wisc-Online
Wisc Online: Using "They're," "There," and "Their" Correctly
Students practice recognizing the different uses of there, their and they're.
Organization for Community Networks
Ofcn: Horrid Homonyms
This site features a lesson plan for homonyms. Students and teachers will benefit in their speech and writing skills after tackling this activity.
PBS
Pbs Learning Media: Some Frequently Confused Words
Some words in English can look and sound similar, but have entirely different meanings. Keep an eye and ear out for them; beware of commonly confused words. [0:40]
Kent State University
Ohio Literacy Resource Center: Homonyms
Find out the definition of a homonym when you visit this resource. This site features a list of common homonyms.
Other
Using English: English Language Quizzes
Over 200 short self-quizzes for English learners at beginner and intermediate levels. Quizzes span topics including spelling, grammar, vocabulary, and punctuation.