Well, Oxford, Cambridge and Macmillan lists /ˌɛdjʊˈkeɪʃ(ə)n/, /ˌed.jʊˈkeɪ.ʃən/, and /ˌedjʊˈkeɪʃ(ə)n/ respectively as the pronunciation for education. Yet, people say /edʒʊkeɪʃən/.
Can you please elaborate?
Well, Oxford, Cambridge and Macmillan lists /ˌɛdjʊˈkeɪʃ(ə)n/, /ˌed.jʊˈkeɪ.ʃən/, and /ˌedjʊˈkeɪʃ(ə)n/ respectively as the pronunciation for education. Yet, people say /edʒʊkeɪʃən/.
Can you please elaborate?
/ɛdʒuˈkɛɪʃən/ is the way it's pronounced in General American (the standard American accent), and /edjuˈkɛɪʃən/ is the way it's pronounced in Recieved Pronunciation (the standard British accent). I'm not entirely sure (since I'm a GA speaker), but I wouldn't be surprised if RP speakers sometimes pronounce it /ɛdʒuˈkɛɪʃən/ when they're not being particularly careful about their speech.
This is due to two processes called yod-dropping and yod-coalescence. Yod-dropping causes /j/ in historic /ju/ to be dropped in certain situations. In GA, this happens after any of the coronal consonants (consonants articulated with the tip of the tongue): /t/, /d/, /s/, /z/, /ʃ/ /θ/, /tʃ/, /dʒ/ /l/, /ɹ/, and possibly /ʒ/ and /ð/ (I can't find any examples of yod-dropping after /ʒ/ and /ð/, but they are coronal consonants). In RP, however, /j/ is never dropped after /n/, and it is only sometimes dropped after /t/, /d/, /s/, /z/, /θ/, and /l/ (theoretically, it would also sometimes be retained after /ð/). Yod-coalescence turns /tj/, /dj/, /sj/, and /zj/ into /tʃ/, /dʒ/, /ʃ/, and /ʒ/ in unstressed syllables in GA and sometimes RP.
So, due to yod-dropping, "new" is pronounced /nju/ in RP, but /nu/ in GA; "Zeus" (a god in Greek mythology) is pronounced /zjus/ in RP, but /zus/ in GA (yod-coalescence doesn't occur here because the syllable is stressed); "due" is /dju/ in RP, but /du/ in GA; and "enthusiasm" is pronounced /ɛnˈθjuzi.æz(ə)m/ in RP, but /ɛnˈθuzi.æz(ə)m/ in GA. Due to yod-coalescence, "nature", historically pronounced /ˈnɛɪtjuɹ/, is now pronounced /ˈnɛɪtʃə/ in RP and /ˈnɛɪtʃɚ/ in GA; "azure", historically pronounced /ˈæzjuɹ/, is now pronounced /ˈæʒ(j)ə/ in RP and /ˈæʒɚ/ in GA; "educate", historically pronounced /ˈɛdjukɛɪ̯t/, is now pronounced /ˈɛdjʊkɛɪ̯t/ or /ˈɛdʒəkɛɪ̯t/ in RP and /ˈɛdʒəkɛɪ̯t/ in GA.
An interesting problem. I'm no native English speaker (German) and used to the pronunciation (Pn) of the word education with /dj/. Made curious by the question I had a look at some dictionaries:
OALD BrE ʤ, AmE ʤ
Collins only one Pn: dj - no differentiation between BrE and AmE
Macmillan only one Pn: dj
Cambridge BrE dj, AmE ʤ
This clearly shows how careless and imprecise renowned dictionaries are as to Pn. No dictionary gives a hint that the Pn of education is an example of language change. /dj/ is in the process of changing to /ʤ/. In AmE ʤ seems to be the standard Pn, in BrE you can hear the traditional dj and the more recent ʤ.
The only dictionary that really indicates the problem of two Pn-s for BrE is my old Everyman's English Pronouncing Dictionary by Daniel Jones and A.C.Gimson. Only for BrE. It gives as first Pn dj and as second Pn ʤ. (I have the 14th edition from 1977.)