Bulla de VerbosA practice game for stem-changing verbs; e-ie, e-i, and o-ue. Coordinates with verbs from Senderos 1 Chapter 5. Students have one minute to complete as many verb conjugations as possible. The point is not to get them all right, but to merely improve over time. Have your students keep their Bulla de Verbos sheets so they can see how they improve. I am working on expanding this exercise set.