Learners add suffixes to base words to form new verbs in this interactive exercise.

Students add suffixes to base words to form nouns in this interactive lesson.

Students review the spelling rules for adding a suffix to a base word. They practice changing the "y" to "i" for some of the words that end in "y."

In this interactive object, learners read the definitions of prefixes and suffixes that relate to the digestive system. They then use this knowledge to combine word components to form medical terms.