educationist
or ed·u·ca·tion·al·ist
[ ej-oo-key-shuh-nist or ej-oo-key-shuh-nl-ist ]
/ ˌɛdʒ ʊˈkeɪ ʃə nɪst or ˌɛdʒ ʊˈkeɪ ʃə nl ɪst /
noun
a specialist in the theory and methods of education.