How to write a half page introduction (oevrview) of 3 week unit lesson plan on CHARACTER on Lois Lowry's The Giver?

I noticed that your question asks how to write an
introduction to a lesson plan, and does not ask for the introduction.  So I will explain
how.  The purpose of the introduction is for those who see the lesson to understand your
objectives.  This could be for an outside audience, like an administrator or sub, but it
could also be for you.  You may return to the lesson after not teaching it for years,
and the introduction will help you understand your purpose in writing
it.

 First of all, I would describe the reasons you are
focusing on characterization and why you chose this book.  One of the things that make
this book ideal for teaching characterization is that it has richly developed
characters, but there are very few of them.  The Giver and Jonas are the most developed
characters, but there is some characterization of Fiona, Gabriel, Mother, Father and
Asher.  By having students analyze all of these characters, you can teach the difference
between dynamic and static characters and the difference between round and flat
characters. 

 Next, I would briefly describe some of the
activities that would take place during the lesson.  Giving this overview will enforce
how these lessons introduce and explore the concept of
character.