Answer: role-playing
Step-by-step explanation: Samir should choose role playing technique for the delivery. Under this technique, the participants of the class will play the role of the member of the team and assumes a virtual authority.
By using this technique Samir can make the participants closely fell the sense of responsibility they have to bear and have a glimpse of job they will be performing in the future.
Hence, role-playing is the best technique that Samir can use.