Mademoiselle Zazie's Best Friend/ Teach at the Beach/ Mademoiselle Zazie's Nit-Picking

S1, E101: Zazie has two best friends, Abigail and Cindy, but Abigail demands that she can only have one. Pedro spots their teacher at the beach! The kids think she must be there to teach them on their day off. Poor Cindy has lice and Zazie is determined to help!