What it practices
Word study, one grade at a time: rhymes, first sounds and sight words in kindergarten; short vowels, silent e and plurals in 1st; synonyms, antonyms and compound words in 2nd; prefixes and suffixes in 3rd; parts of speech and homophones in 4th and 5th; Greek and Latin roots in 6th and 8th; and shades of meaning in 7th. Word Frog makes it a river crossing: read the prompt, time your hops across the logs and lily pads, and land on the right word.