Barbara Morgan, selected as back-up teacher to Christa McAuliffe in 1985, is considered to be the first Educator astronaut by the media, but she trained as a mission specialist.
bˈɑːɹbɚɹə mˈɔːɹɡən, sᵻlˈɛktᵻd æz bˈækˌʌp tˈiːtʃɚ tə kɹˈɪstə mək ˈɔːlɪf ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi fˈaɪv, ɪz kənsˈɪdɚd təbi ðə fˈɜːst ˈɛdʒuːkˌeɪɾɚɹ ˈæstɹənˌɔːt baɪ ðə mˈiːdiːə, bˌʌt ʃiː tɹˈeɪnd æz ɐ mˈɪʃən spˈɛʃəlˌɪst.