I don't really understand your question?
are you talking about 1st,2nd and 3rd person?
I'm going to 7th grade on september and i have no idea on how to write 10 journal entries based on a person's perspective and voice. I already finished my book Canyons only i have no clue what to do!
3 answers
Here is an example of perspective (who sees?) and voice (who speaks?) in literature.
http://auslit.net/2010/08/22/the-delta-perspective-and-voice-and-reporting-thought-and-action/
http://auslit.net/2010/08/22/the-delta-perspective-and-voice-and-reporting-thought-and-action/
Another explanation for perspective is point of view. Each journal entry can be from the point of view of a different character. Voice can be your writing style. Check the definitions in this literary glossary.
http://www.wallkillcsd.k12.ny.us/glt.htm
http://www.wallkillcsd.k12.ny.us/glt.htm