1. Getting Started (2:31m)
Teacher: Lisa Brown
Teacher launches the lesson by directing students to find as many squares as possible.

2. Teacher/Student Discussion (3:07m)
Teacher refers the student to a prior lesson "Maps of Euclid." The notebook of prior work brings ideas forward to this lesson.

3. Students Present (3:43m)
Students Present a variety of squares and their areas. Some unique squares create student discussion.

4. Teacher Presents (4:06m)
The teacher leads the students to discover the relationship between area and the length of one side.

5. Teacher Assessment (1:49m)
Teacher assesses students' ability to calculate square root for the squares in their examples.

6. Student Work (5:14m)
The teacher challenges students to find the wauare root of an odd number (5).

7. Teacher Demonstration (0:50m)
Teacher uses a physical model to demonstrate the length of a side for the 5 unit square.

8. Student Work (1:53m)
One student discovers the square root key on the calculator.

9. Student Work (2:15m)
Students discover that the calculator does not give a whole number answer for the square root of 8, and that measurements are approximate.

10. Teacher Presentation (0:59m)
Teacher introduces a sign for "approximately equal to" for writing notation.

11. Teacher Reflection (0:30m)
The teacher reflects on the Connected Mathematics Program.