The word Mistayching is misspelled against Misteaching, which is present continuous of "Misteach"
-->
Misteaching has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets mist & ching is misspelled as 'AY'
Wrong Spelling:  mist-ay-ching 
Correct Spelling:  mist-ea-ching 
Find more wrongly spelled words of Misteaching to spell it well.