Stephen krashen referred to this time as "the silent period", also known as pre production, this silent period might last anywhere from several weeks to a year. During this period, instructors must provide their students in diverse language experiences and provide cues to support comprehension.
I am proposing as step 1, to have a 20 to 30 minutes of "oral expression class" in which the teachers will model and instruct students how to verbalize their thoughts and ideas.