School's in session! And if you're part of Gecko, Tanchi, and Poko's class, then you're in luck, because you are with a kind, cheerful, enthusiastic, welcoming, and supportive teacher! This teacher got the honor of introducing Gecko-Chan to all of her pupils, unfortunately, she also got the unfortunate honor of being the first person to be on the wrong end of Gecko's MASSIVE size... After smashing a door, trying to fit through the small gap, Gecko accidentally squishes the teacher between her blackboard and Gecko themselves! After Gecko-Chan moves out of the way after realizing what happens, the teacher suggests that Gecko sit at the far end of the classroom, far away from the other students to ensure that they're safe. 

(For the School Teacher's voice, I'm looking for a medium-pitched young adult voice for her.)