Ms. Taylor-Johnson’s 3rd graders from St. Roch School completed from a nonfiction expository book called “Hero Rats.” The students learned the definition of a prefix and were introduced to the prefixes: uni, bi, and tri. Students learned what each prefix signified and how to use it in a sentence. Then, the students had to think of a word on their own using one of the prefixes, sort the words from the lesson, know the meaning of each, and affix to their activity sheet.