This lesson goes along with the "Could you tell me how to get to . . ." lesson in New Horizon.
You should do the textbook grammar with the students first, or they should have done it.
Divide the class into groups or pairs, and have each group or pair make their own skit using the shikansen map and the minimal worksheet.
At the end of class, have students show off their skits to you or to the whole class.