This is a great BUNDLE for your Spanish 1 students to practice conjugating E to IE/E to I, O to UE. With over 260 exercises of present tense Spanish stem-changing verbs, ER/IR, and AR irregulars and stem-changing verbs that end in ER, IR, or AR this resource is all you need to introduce the stem-changing verbs to your students.This pack also includes Grammar explanations (What is a stem changer?), diagram of a shoe verb, 10 common AR, ER/IR verbs with O to UE stem change.This product includes:ER