This interactive PowerPoint was created to help students understand the reason for spelling changes for -gar, -car, and -zar verbs in the preterite. Complete with animation, it allows students to actively engaged in the lesson. After each final explanation, there are several practice slides. The animation allows for students to write or orally present their answers before the answers are revealed. This practice with immediate reinforcement gives students and teachers the opportunity to make sure they understand the material before employing it in other contexts. If you use this presentation and have any suggestions to improve it please let me know. I would also like to meet any classroom needs you may have as I love creating PowerPoints. Please let me know if there is anyway I can help you.