The Niu Haohao Intermediate Hawaiian Language Classes are based on the textbook Nā Kai ʻEwalu, written by Dr. William H. Pila Wilson and Dr. Kauanoe Kamanā. Niu Haohao ʻEhā covers Mokuna 27-29, which are the final chapters of the online, Leokī Nā Kai ʻEwalu lessons originally created by the University of Hawaiʻi at Hilo's College of Hawaiian Lanaguag in the mid 2000s.