Cooperative learning structures should be done in primary language first, followed by heterogeneous language groups second, processing in English. The bilingual paraprofessional is circulating around the classroom clarifying, reinforcing concepts and validating generalizations, providing high level primary language when needed. Bilingual paraprofessionals take student dictation of everything they know about a topic or science exploration. The bilingual paraprofessional models for students how to formulate ideas in various forms such as a paragraph, a list, an outline, using bullets etc. This kind of primary language reinforcement cannot take the place of certificated, bilingual teachers, but it is valuing primary language in a positive, educational way, moving students toward primary language literacy.
All options are possible.
Don't ask a parent to read or write if they are not literate themselves.