Lesson Plan : Area and Perimeter and Formulas

Teacher Name:
 Jessica Stephens
 Grade 4

 Area and Perimeter of rectangles and squares.
 Formula for perimeter = length + width + length + width Formula for area = length x width Key vocabulary: area, perimeter, length, width, squared
 The students will be able to give and use the formula for both area and perimeter, and distinguish whether to find area or perimeter in word problems.
 2.01 - TLW develop strategies to determine the area of rectangles and the perimeter of plane figures. 2.02 - TLW solve problems involving perimeter or plane figures and areas of rectangles.
 Smartboard, projector, whiteboards (one for each student), dry erase markers (one for each student), math textbook, math journal, area and perimeter worksheet, area and perimeter tic-tac-toe worksheet, and pencils.
 At the start of the lesson, I will bring a bag up to the front of the classroom. Without saying anything, I will pull out some carpet samples and wall paper border as well as a tape measure. Then I will tell the students that I may want to do some "redecorating" in the classroom to make it look a little brighter, but that before I can go to the store, I need to know how much carpet and wall paper to buy. I will then take some measurements around the classroom (the length of the room and the width of the room) and write the measurements down on the board. Once I have them down on the board, I will say, "I have measured some of the room, but I am not sure how these numbers will help me know how many materials I need."
 I will begin the lesson by telling the students that in order to know how many materials I need, that I would need to know how to figure out the perimeter and area of the room. At this point I would tell the students the formulas and have them write the formulas down in their math journal for future reference. I would then draw a picture of a square on the Smartboard and outline the outside of the square as perimeter. On a different square I would show what the area is. Before modeling any problems, have the students determine whether I would have to solve area or perimeter for the carpet and wallpaper. Using the Smartboard, and problems from the math book, I would model how to solve perimeter and area problems.
 1.) Use the Smartboard and the area and perimeter "game" on www.mathplayground.com. Students solve the problems in groups and write a response on a whiteboard to show to the teacher when prompted. There is an unlimited amount of questions at this site to allow for plenty of practice. I can have the students work on as many as needed until I fell that the students understand.
 For those that need additional help, I will work with in small groups while the other students begin working on a perimeter and area tic-tac-toe assignments (I have this at school in my files)which have assignments of varied difficulty. If many still do not understand, I will have students that do understand "teach" those that are having difficulty with problems from the math textbook. Any students that need additional assistance can use the smartboard and mathplayground to get step by step directions on the process as well.
Checking For Understanding:
 1.) Math worksheet 2.) Explanation in math journal 3.) Activities completed on tic-tac-toe 4.) Teacher observation as working independently 5.) Teacher observation as students are putting response on their whiteboards during the practice.
 Have students turn to their shoulder buddy in cooperative groups and tell how to find perimeter and area. Teacher then reviews the formulas as well.
 1.) Performance based test after working on the concept for a week. Student work from the week with be kept in their math portfolio as well. 2.) Completion of perimeter and area "test" on Study Island.

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