At one time , Heian Nidan was Heian Shodan , but Funakoshi Shihan considered it too difficult for an introductory kata and changed the order .
Heian Nidan   is taught first .
At one time , Heian Nidan was Heian Shodan , but Funakoshi Shihan considered it too difficult for an introductory kata and changed the order so that Heian Shodan is taught first .