iKnowthat.com has online multimedia educational games for kids in grades PreK through 6 (ages 2-12).

Supernova Sentence Puzzles

In Supernova Sentence Puzzles, kids select words to finish sentences based on parts of speech and sentence structure. Supernova Sentence Puzzles covers noun forms, verb forms, adjective forms, pronoun forms, adverbs, prepositions, conjunctions,  homophones, homographs, and more. These topics are aligned with several Language Arts standards and benchmarks for 1st grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th grade.

When a word is selected, the sentence is read aloud, giving children a chance to hear what their choice sounds like in the sentence. This combination of auditory and visual feedback helps kids determine whether or not the sentence is correct.

At the end of each round, kids can put together a puzzle using pieces they collect during the game.