A technique used to teach appropriate interactions, cool and uncool behaviors, understanding others’ perspectives, and knowing the unwritten codes of conduct is:

the bazaar because it represents the inaccessible land of freedom to the narrator. mangan’s sister because she represents domesticity and routine to the narrator. the marketplace because it represents the suburban lifestyle to the narrator. the church because it represents spiritual healing and renewal to the narrator.

last one is the answer

(4) "oh, i've got better plans than that," laughed kerry. "i've got four firecrackers and two model rockets. care to join me in the backyard? "

this is the correct answer because of one simple word. "backyard"