We found one dictionary that defines the word formal operational:

Miscellaneous (1 matching dictionary)

1. A Brief Critical Dictionary of Education (No longer online)

▸ Words similar to formal operational ▸ Usage examples for formal operational ▸ Idioms related to formal operational ▸ Wikipedia articles (New!) ▸ Words that often appear near formal operational ▸ Rhymes of formal operational ▸ Invented words related to formal operational