Ashibe-kun’s school is having an open house and both ma and pa are there to watch his class. Mr. Tendou enters the class to teach math, but it’s not going so well. 
Instead of using the blackboard, Mr. Tendou uses Goma-chan and stuffed animals. 
With all the Goma-chan look-alike stuffed animals, where did the real Goma-chan go?!
To make sure we don't do the math wrong,
،لنحرص على عدم الوقوع في خطأ حسابي
Damit wir uns nicht verrechnen,
Para no cometer errores de cálculo,
Para no cometer errores de cálculo,
Pour ne pas se tromper,
on va étudier avec Goma !
Per essere sicuri di non sbagliare i calcoli,
Para não errarem os cálculos,