When JoJo and Gran Gran pick up JoJo’s cousin Lexi from school, JoJo wants to learn everything about what Lexi has been doing there. It’s time for a Gran Gran plan – why don’t they play schools when they get home? The cousins turn Gran Gran’s living room into a classroom ready for Lexi to become a teacher. Writing, science, reading, counting, drawing and music – there's lots to learn! Then it’s JoJo’s turn to play teacher, but what can she teach? After all, she’s never been to school. Gran Gran is sure that there’s someone that JoJo knows lots about – now who could that be?