This two page document is a great way to introduce preterite spelling changes for AR/ER/IR verbs and also serves as a notes sheet for regular endings and spelling changes. My students love using this as a resource!
Page 1 is AR verbs- it has notes for regular endings, then introduces spelling changes that occur in the YO form (car, gar, zar) and also has space for an example verb. Page 2 is ER/IR verbs - it has notes for regular endings and then notes for IR spelling change verbs (e-i and o-u) and also i-y spelling change.
Answer key is included.
For more "preterite" activities, check out:
Preterite AR/ER/IR Conjugation Practice
La Sagrada Familia: Preterite Reading
Preterite AR Class Activity
Irregular Preterite Verbs Chart
Preterite Cloze Activity- Camila, Mientes