1. Topic Of Lesson Plan-
Is it a polygon?
2. Lesson Content-
Size, shape and symmetry unit in math investigations
4.G.1: Compare and analyze attributes and other features of two and three dimensional shapes

4.G.2:Describe, model, draw, compare, and classify two and three dimensional shapes.

Polygons, sides, angles, vertices, corners, lines, closed figure,
3. Goals And Expectations-
1.SWBAT: Identify polygons
2.Define what a polygon is
3.Identify shapes that are not polygons
4. Use attributes of polygons to play a game using power polygons

4. Objectives-

1.Define polygons as closed figures with line segments as sides and vertices
2.Classify polygons by attribute, including number of sides, and length and size of angles
3. Use attributes to play "guess my rule" game
5. Materials and Aids-
Math texts
Power polygons
6. Methods Used and Procedures-

A. Introduction-

1.To activate interest I will ask the students what they know about the word "polygon". I will also ask them if they have ever worked with polygons before. I will then lead into the lesson on the overhead and begin by asking students why the shapes on top are polygons and why the shapes on the bottom are not...

B. Development-

I will start by displaying T45 on the overhead while the students are looking at page 15 in their texts. I will explain that the top three shapes are polygons and the others are not. I will then have them turn and talk about why those on the top are polygons and why the others are not.

Once they have had time to discuss I will bring them back together and have a short discussion. I will then have them turn to page 16. Each student will look at the shapes on this page and will write a "P" if it is a polygon or an "NP" if it is not a polygon. We will then place the shapes on the chart labeled "Polygon" "Not Polygons". From this discussion we will come up with the definition of what makes a polygon.

C. Practice-

I will then introduce the students to the game " Guess my rule" with power polygons. I will model the game before the kids play. I will show three different polygons and tell them that two of the polygons fit my rule and one does not. Then, I will ask for suggestions as to what my rule may be.
Once this is completed, I will send the students off with their groups.

D. Independent Practice-

Homework will be pages 17-18

E. Accommodations For Students-

For those who struggle with the concepts I will pull as a math group to work with me or ms. Noorgaard.

F. Checking for understanding-

I will assess by observing students at work and checking for understanding of concepts taught

G. Closure-

To wrap up the lesson, I will review what a polygon must have and what is not a polygon. I will then tell them that they will be working on making different polygons in the next lesson.
7. Evaluation-

Complete homework on polygons.


Lesson Plans from (www.AGradeMath.com)