You will want to look at the NCTM Standards as you write up this lesson. http://standards.nctm.org/document/index.htm

Assignment:

Either watch the video lesson: # 20: Shapes from Squares in the Teaching Math Video Library K-4 at http://learner.org/resources/series32.html  You  will be asked to sign up for a free membership to be able to watch videos on this site. If your computer is a Mac, you will also need to install Flip4Mac

OR

Read the lesson More About Dates: A lesson for grades 4-5 from the Math Solutions issue 34 newsletter 

Then write an analysis of the lesson telling 1 content and 1 process standard that are featured prominently in this lesson.

If you missed class or if you forgot what we did in class, you can watch the videos and do the readings that I put together for an on line class I have taught.  Read/watch the stuff under the headings Format and structure of the math standards  and  Process standards.