Experienced project professional, US based, MBA, experienced with proposal writing, technical training documents and English (ESL) instruction.
My training approach in this situation:
1) Prepare and provide a list of common English errors in business writing and review with the team.
2) Assign simple written essay assignments and review for standard written and spoken English.
3) Review written assignments of business writing.
4) Offer one on one sessions for students to improve spoken English and to cover any specific challenges with English they may have.
I would be glad to assist with your training project. Thanks