This is an activity I did with my 6th graders after their final exams.
Students reflect on their own experience in 6th grade and write advice columns to incoming 6th graders.
This packet contains:
2 journal activities
An explanation and example of advice column letters
Step-by-step instruction sheet for the advice column letters
2 Student samples of questions and answers
You could give students the instruction packet and let them work on it while you finish up end of the year grading or housekeeping.
This is a word document so it can be modified to fit your grade level or school.