Over the course of the year, Mr. Broderick's class have tested their knowledge against Sir's. Although the wall initially claimed that Sir Knows It All, this changed to Sir Thinks He Knows It All and back again on a continuous basis as both the class and Mr. Broderick proved to be the most knowledgeable on certain topics. 
On their final week of primary school, the boys challenged Sir to one final, epic contest! This went to a sudden death play-off, only for the class to prove that it is in fact they and not Sir, who know it all!