1. READY TO TEACH SM EDI ® Lessons ©2013 All rights reserved. EDI Lesson Overview 4 th Grade Math Learning Objective: We will solve problems by applying the area and perimeter formulas for rectangles. Focus Standard: 4.MD.3 Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor. Support Standard: SMP 1, SMP 2, SMP 3, SMP 4, SMP 6, SMP 8 Special Instructions: As an optional interpretation of answers in Skill Development/Guided Practice, students may be asked to redraw their rectangles. Students need not draw rectangles exactly to scale. The purpose is to, after solving for either the length or width, ensure that the drawn rectangle closely matches the dimensions (e.g., the longer side of the drawing is labeled with the longer dimension). Vocabulary Academic: applying, identify, determine, interpret Content: area, perimeter, formula Support: Common Core Shifts in Mathematics Shift 1 Focus Shift 2 Coherence Shift 3 Fluency Shift 4 Deep Understanding Shift 5 Application Shift 6 Dual Intensity Standards for Mathematical Practice (SMPs) SMP1 Make sense of problems SMP2 Reason abstractly and quantitatively SMP3 Construct arguments and critique the reasoning of others SMP4 Model with math SMP5 Use appropriate tools SMP6 Attend to precision SMP7 Make use of structure SMP8 Look for regularity in repeated reasoning

2. CCSS 4 th Grade Measurement and Data 3.0 Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor. Lesson to be used by EDI-trained teachers only. READY TO TEACH SM EDI ® Lessons ©2013 All rights reserved. What are we going to do? What does applying mean? Applying means __________. CFU Students, you already know how to find missing side lengths on rectangles. Now, we will use the side lengths of rectangles to apply formulas to find the area and perimeter. Make Connection Find the missing side lengths of the rectangles. 1 putting to use Vocabulary We will solve problems by applying 1 the area and perimeter formulas for rectangles. Learning Objective Activate Prior Knowledge 1.2. 5 inches 3 inches 6 feet 4 feet 6 feet 4 feet 3 inches 5 inches for/mu/las

3. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. The area is the amount of space that covers a whole shape. Area is measured in square units. (units  units = square units) The formula 2 for area of a rectangle is A = l  w. The perimeter is the distance around a shape. The formula for perimeter of a rectangle is P = 2 l + 2 w or P = 2( l + w ). Which shows the formula for area used correctly for the rectangle below? How do you know? A A = 2(4 + 2) B A = 4 × 2 In your own words, what is the area of a rectangle? The area of a rectangle is ____. CFU 1 Perimeter and Area Go to Skill Dev 1 A = l × w = 5 × 3 = 15 square inches P = 2( l + w ) = 2(5 + 3) = 16 inches width ( w ) 3 inches length ( l ) 5 inches 4 feet 2 feet Which shows the formula for perimeter used correctly for the rectangle below? How do you know? A P = 2(4 + 2) B P = 4 × 2 In your own words, what is the difference between the perimeter and area of a rectangle? CFU 2 4 feet 2 feet Go to Skill Dev 2 Animated A = l × w = 5 × 3 = 15 square inches P = 2( l + w ) = 2(5 + 3) = 16 inches 2 mathematical rule Vocabulary Concept Development

4. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Read the problem. Identify 3 the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret 4 the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b 3 find (synonym) 4 explain (synonym) Vocabulary How did I/you draw and label a rectangle? How did I/you determine which formula to use? How did I/you check the solution? CFU 2 1b 3 Skill Development/Guided Practice 1 The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 1. A rectangle has a length of 8 feet and a width of 4 feet. Find the area of the rectangle. ___________________________________ 2. A rectangle has a length of 9 meters and a width of 6 meters. Find the area of the rectangle. __________________________________ 8 feet 4 feet A = l  w A = 8  4 32 = 8  4 32 square feet The area of the rectangle is 32 square feet. 9 meters 6 meters A = l  w A = 9  6 54 = 9  6 54 square meters The area of the rectangle is 54 square meters. Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

5. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 1 (continued) The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 3. Find the width of a rectangle with a length of 7 yards and an area of 42 square yards. __________________________________ 4. Find the length of a rectangle with a width of 4 inches and an area of 24 square inches. __________________________________ 7 yards 42 square yards A = l  w 42 = 7  w 42 = 7  6 6 yards The width of the rectangle is 6 yards. 4 inches24 square inches A = l  w 24 = l  4 24 = 6  4 6 inches The length of the rectangle is 6 inches. Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b How did I/you draw and label a rectangle? How did I/you determine which formula to use? How did I/you check the solution? CFU 2 1b 3 Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

6. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 1 (continued) 5. Jerry is building a fence around a rectangular garden. The length of the fence is 7 feet and the width is 5 feet. How many square feet does he have inside for planting? __________________________________ 6. Crista is putting carpet in her room. Her room is a rectangular shape. The length of her room is 8 yards and the width is 6 yards. How many square yards of carpet does Crista need? __________________________________ 7 feet 5 feet A = l  w A = 7  5 35 = 7  5 35 square feet Jerry has 35 square feet for planting. 8 yards 6 yards A = l  w A = 8  6 48 = 8  6 48 square yards Crista needs 48 square yards of carpet. Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w ) How did I/you determine what the question is asking? How did I/you determine the math concept required? How did I/you determine the relevant information? How did I/you solve and interpret the problem? How did I/you check the reasonableness of the answer? CFU 2 1 3 4 5 Area

7. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 1 (continued) 7. The garage door on Darlene’s house is 63 square feet. The width of the garage door is 7 feet. What is the length of the garage door? __________________________________ 8. The screen on Samuel’s tablet is 70 square inches. The length of the tablet is 10 inches. What is the width of Samuel’s tablet? __________________________________ Back to Concept Dev 7 feet 63 square feet A = l  w 63 = l  7 63 = 9  7 9 feet The length of the garage door is 9 feet. 10 inches 70 square inches A = l  w 70 = 10  w 70 = 10  7 7 inches The width of Samuel’s tablet is 7 inches. Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w ) Area How did I/you determine what the question is asking? How did I/you determine the math concept required? How did I/you determine the relevant information? How did I/you solve and interpret the problem? How did I/you check the reasonableness of the answer? CFU 2 1 3 4 5

8. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 2 The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 1. A rectangle has a length of 8 feet and a width of 4 feet. Find the perimeter of the rectangle. __________________________________ 2. A rectangle has a length of 9 meters and a width of 6 meters. Find the perimeter of the rectangle. __________________________________ 8 feet 4 feet P = 2( l + w ) P = 2(8 + 4) 24 = 2(12) Perimeter = 24 feet The perimeter of the rectangle is 24 feet. P = 2(12) 9 meters 6 meters P = 2( l + w ) P = 2(9 + 6) 30 = 2(15) Perimeter = 30 meters The perimeter of the rectangle is 30 meters. P = 2(15) Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b How did I/you draw and label a rectangle? How did I/you determine which formula to use? How did I/you check the solution? CFU 2 1b 3 Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

9. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 2 (continued) The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 3. Find the width of a rectangle with a length of 7 yards and a perimeter of 26 yards. __________________________________ 4. Find the length of a rectangle with a width of 4 inches and a perimeter of 20 inches. __________________________________ 7 yards Perimeter = 26 yards 6 yards 4 inches Perimeter = 20 inches 6 inches P = 2( l + w ) 26 = 2(7 + w ) 2(13) = 2(7 + 6) The width of the rectangle is 6 yards. 2(13) = 2(7 + w ) P = 2( l + w ) 20 = 2( l + 4) 2(10) = 2(6 + 4) The length of the rectangle is 6 inches. 2(10) = 2( l + 4) Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b How did I/you draw and label a rectangle? How did I/you determine which formula to use? How did I/you check the solution? CFU 2 1b 3 Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

10. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 2 (continued) 5. Jerry built a rectangular flowerbed for his garden. The length of the flowerbed is 7 feet and the width is 5 feet. What is the measure around the flowerbed? __________________________________ 6. Crista's bedroom is in the shape of a rectangle. The length of her room is 8 yards and the width is 6 yards. What is the measure around Crista's room? _____________________________________ 7 feet 5 feet = 24 feet 8 yards 6 yards = 28 yards P = 2( l + w ) P = 2(7 + 5) 24 = 2(12) The measure around the flowerbed is 24 feet. P = 2(12) P = 2( l + w ) P = 2(8 + 6) 28 = 2(14) The measure around Crista’s bedroom is 28 yards. P = 2(14) Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w ) Perimeter How did I/you determine what the question is asking? How did I/you determine the math concept required? How did I/you determine the relevant information? How did I/you solve and interpret the problem? How did I/you check the reasonableness of the answer? CFU 2 1 3 4 5

11. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Development/Guided Practice 2 (continued) 7. The measure of the rectangular fence around Josie’s yard is 32 yards. The width of the fence is 7 yards. What is the length of the fence? __________________________________ 8. The measure around Gil’s backyard is 34 meters. The length of the yard is 10 meters. What is the width of Gil’s backyard? __________________________________ 7 yards = 32 yards 9 yards P = 2( l + w ) 32 = 2( l + 7) 2(16) = 2( l + 7) The length of the fence is 9 yards. 2(16) = 2( l + 7) 10 meters = 34 meters 7 meters P = 2( l + w ) 34 = 2(10 + w ) 2(17) = 2(10 + 7) The width of Gil’s backyard is 7 meters. 2(17) = 2(10 + w ) Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w ) Perimeter How did I/you determine what the question is asking? How did I/you determine the math concept required? How did I/you determine the relevant information? How did I/you solve and interpret the problem? How did I/you check the reasonableness of the answer? CFU 2 1 3 4 5

12. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Solving problems by applying the area and perimeter formulas for rectangles will help you solve real-world problems. Solving problems by applying the area and perimeter formulas for rectangles will help you do well on tests. 1 Does anyone else have another reason why it is relevant to solve problems by applying the area and perimeter formulas for rectangles? (Pair-Share) Why is it relevant to solve problems by applying the area and perimeter formulas for rectangles? You may give one of my reasons or one of your own. Which reason is more relevant to you? Why? CFU 2 Relevance The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. Paul is repainting the walls in his home. Each gallon of paint covers 350 square feet of area. The walls he is painting have an area of 1,200 square feet. Paul will need to buy 4 gallons of paint. Sample Test Question: 12. Use the rectangle to solve the problem. 28 cm The area of the rectangle is 420 square centimeters. What is the perimeter, in centimeters, of the rectangle?

13. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Skill Closure The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 1. Find the area of a rectangle with a length of 9 centimeters and a width of 5 centimeters. ______________________________________ 2. Find the length of a rectangle with a width of 2 inches and an perimeter of 18 inches. _____________________________________ 9 cm 5 cm A = l × w A = 9 × 5 45 = 9 × 5 45 square cm The area of the rectangle is 45 square centimeters. 2 inches Perimeter = 18 inches 7 inches P = 2( l + w ) 18 = 2(? + 2) 2(9) = 2(7 + 2) The length of the rectangle is 7 inches. 2(9) = 2(? + 2) Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

14. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. What did you learn today about solving problems by applying the area and perimeter formulas? (Pair-Share) Use words from the word bank. Access Common Core Summary Closure The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. Ellen is replacing the tile on her kitchen floor. Her kitchen is a rectangle with a length of 4 yards and a width of 5 yards. Ellen wants the tile to cover her floor completely. Which formula should Ellen use? Explain your answer, then apply the formula. Word Bank apply perimeter area formula Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w ) Ellen needs to find out how much tile will cover the floor so she should use the area formula. A = l  w A = 4  5 20 = 4  5 Ellen needs 20 square yards of tile to cover the floor of her kitchen.

15. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Independent Practice The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 1. A rectangle has a length of 7 feet and a width of 3 feet. Find the area of the rectangle. ___________________________________ 2. Find the length of a rectangle with a width of 5 inches and an area of 30 square inches. __________________________________ 7 feet 3 feet A = l × w A = 7 × 3 21 = 7 × 3 21 square feet The area of the rectangle is 21 square feet. 5 inches30 square inches A = l × w 30 = 5 × ? 30 = 5 × 6 6 inches The length of the rectangle is 6 inches. Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

16. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. 3. Becca built a rectangular deck for her backyard. The length of the deck is 9 feet and the width is 4 feet. What is the area of the deck? __________________________________ 4. Ernest’s rectangular kitchen has an area of 80 square feet. The length of the kitchen is 10 feet. What is the width of Ernest’s kitchen? __________________________________ Independent Practice (continued) The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 9 feet 4 feet A = l × w ? = 9 × 4 36 = 9 × 4 36 square feet The area of the deck is 36 square feet. 10 feet 80 square feet A = l × w 80 = 10 × ? 80 = 10 × 8 8 feet The width of Ernest’s kitchen is 8 feet. Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

17. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Independent Practice (continued) The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 5. A rectangle has a length of 7 feet and a width of 3 feet. Find the perimeter of the rectangle. __________________________________ 6. Find the width of a rectangle with a length of 6 inches and an perimeter of 22 inches. __________________________________ 7 feet 3 feet P = 2( l + w ) ? = 2(7 + 3) 20 = 2(10) Perimeter = 20 feet The perimeter of the rectangle is 20 feet. ? = 2(10) 6 inches Perimeter = 22 inches 5 inches P = 2( l + w ) 22 = 2(6 + ?) 2(11) = 2(6 + 5) The width of the rectangle is 5 inches. 2(11) = 2(6 + ?) Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

18. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. 7. Becca built a rectangular deck for her backyard. The length of the deck is 9 feet and the width is 4 feet. What is the perimeter of the deck? __________________________________ 8. Ernest’s rectangular kitchen has a perimeter of 36 feet. The length of the kitchen is 10 feet. What is the width of Ernest’s kitchen? __________________________________ Independent Practice (continued) The area is the amount of space that covers a whole shape. The perimeter is the distance around a shape. 9 feet 4 feet Perimeter = 26 feet P = 2( l + w ) ? = 2(9 + 4) 26 = 2(13) The perimeter of the deck is 26 feet. ? = 2(13) 8 feet Perimeter = 36 feet 10 feet P = 2( l + w ) 36 = 2(10 + ?) 2(18) = 2(10 + 8) The width of Ernest’s kitchen is 8 feet. 2(18) = 2(10 + ?) Read the problem. Identify the given (underline) and unknown (circle) measurements. Draw and label a rectangle with the given measurements. Apply the correct formula to solve the problem. Hint: Substitute the given measurements to find the unknown measurement. Check and interpret the solution. Optional: Redraw the rectangle to scale, if needed. Solve problems by applying the area and perimeter formulas for rectangles. 1 2 3 a b Rectangle Formulas A = l  w P = 2 l + 2 w or P = 2( l + w )

19. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Periodic Review 1 Access Common Core 1. A rectangle has a length of 12 meters and a width of 4 meters. Find the area of the rectangle. __________________________________ 2. Find the length of a rectangle with a width of 5 miles and an area of 40 square miles. __________________________________ 3. A rectangle has a length of 11 feet and a width of 4 feet. Find the distance around the rectangle. __________________________________ 4. Find the width of a rectangle with a length of 9 inches and an perimeter of 20 inches. __________________________________ The area of the rectangle is 48 square meters.The length of the rectangle is 8 miles. The distance around the rectangle is 30 feet.The width of the rectangle is 1 inch. For each situation, determine whether the formula for area or perimeter of a rectangle should be used. Explain each answer. 1. Donna is painting the walls in her house. To do so, she needs to know how much space she has to cover on each of her walls. 2.Scott is building a fence around his rectangular swimming pool. Before beginning, he needs to know the distance around his pool. 3.Benjamin is building a border for his rectangular flowerbed. To build the border, he must first find the distance around the flowerbed. 4.April is filling her rectangular flowerbed with soil. She needs to know how much space to cover in her flowerbed. 5.Julie is putting new hardwood floor in her rectangular living room. She needs to know how much wood to buy to cover the whole floor. Area Perimeter Area

20. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Periodic Review 2 Access Common Core 1. A rectangle has a length of 6 inches and a width of 3 inches. Find the area and perimeter of the rectangle. ___________________________________ 2. A rectangle has a length of 4 centimeters and an area of 16 square centimeters. Find the width and perimeter of the rectangle. ____________________________________ The area of the rectangle is 18 square inches. The perimeter of the rectangle is 18 inches. The width of the rectangle is 4 centimeters. The perimeter of the rectangle is 16 centimeters. 1. The area of the rectangle below is 300 square inches. What is the perimeter, in inches, of the rectangle? 2. The perimeter of the rectangle below is 72. What is the area, in square inches, of the rectangle? 15 inches 12 inches 300 square inches 300  15 = ? 300  15 = 20 P = 2(20 + 15) P = 2(35) P = 70 The perimeter of the rectangle is 70 inches. Perimeter = 72 72 = 2(12 + ?) 2(36) = 2(12 + ?) 2(36) = 2(12 + 24) A = 12  24 A = 288 The area of the rectangle is 288 square inches.

21. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. Periodic Review 3 Access Common Core 1. Gene built a rectangular fence for his backyard. The length of the fence is 10 feet and the width is 6 feet. What is the perimeter of the fence? __________________________________ 2. Kendra is planting grass in her rectangular yard. The length of the yard is 9 meters and the perimeter is 34 meters. What is the width of the yard? __________________________________ The perimeter of the fence is 32 feet.The width of the yard is 8 meters. 1. Chose Yes or No to indicate whether the statement is true about the rectangle. 6 inches 8 inches A The perimeter of the rectangle is 48 inches. B The formula to find the area of the rectangle is A  l  w. C The perimeter of the rectangle is the distance around the rectangle. DThe area of the rectangle can be found by adding all side lengths. O Yes O No 2. Chose Yes or No to indicate whether the statement is true about the rectangle. A The area of the rectangle is 56 square feet. B The formula to find the perimeter of the rectangle is P  l  w. C The area of the rectangle is the amount of space that covers the rectangle. DThe perimeter of the rectangle can be found by adding all side lengths. O Yes O No 8 feet 7 feet 3. Chose Yes or No to indicate whether the statement is true about the rectangle. 3 meters 2 meters A The perimeter of the rectangle is 10 meters. B The formula to find the perimeter of the rectangle is P  2( l  w ). C The area of the rectangle is the distance around the rectangle. DThe perimeter of the rectangle can be found by multiplying the length and width. O Yes O No

22. CCSS 4 th Grade Measurement and Data 3.0 Solve problems by applying the formulas for area and perimeter for rectangles. Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved. EDI – Cognitive, Teaching, and English Learner Strategies Learning Objective: We will solve problems by applying the area and perimeter formulas for rectangles. Elaboration Targeted Vocabulary Academic applying, identify, determine, interpret Content area, perimeter, formula Support Demonstration Vocabulary Strategy Multiple-Meaning Synonym identify, interpret Definition applying, formula, determine, area, perimeter Homophone Internal Context Clue Listen, Speak Similar Sounds WriteWriting Read Tracked Reading Comprehensible Input Cognates Contextual Clues Graphic Organizer Contextualized Definitions Pictures Language Strategies Cognitive StrategiesTeaching Strategies Content Access Strategies