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We will find the area of rectangles using multiplication.

Name. Learning Objective. We will find the area of rectangles using multiplication. CFU. What are we going to do?. Activate Prior Knowledge. How many tiles will cover the floor?. 1. Make Connection.

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We will find the area of rectangles using multiplication.

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  1. Name Learning Objective We will find the area of rectangles using multiplication. CFU What are we going to do? Activate Prior Knowledge How many tiles will cover the floor? 1. Make Connection Students, you already know that shapes and objects can be covered. The amount of an object that can be covered is called area. Now, we will find the area of rectangles using multiplication. 2.

  2. Concept Development • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying adjacent1side lengths. Area of a Rectangle Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards 5units 1 2 3 4 5 Area 3units 3units 6 7 8 9 10 11 12 13 14 15 5units Area = 3 units× 5 units= 15 square units The area of the rectangle is 15 square units. CFU Which unit will be used to measure the area of the rectangle? A feet B square feet Which shows how the area of the rectangle can be found? How do you know? A 2 feet × 2 feet B 2 feet × 4 feet In your own words, what is the area of a rectangle? The area of a rectangle is __________. 1 next to Vocabulary

  3. Skill Development/Guided Practice • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify2 what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret3 the area of the rectangle. 1 2 3 4 6 units 5 units 3 units 3 units 4 units 4 units 5 units 6 units How did I/you identify the side lengths? How did I/you find the area of the rectangle? CFU 2 find 3 explain Vocabulary 2 3

  4. Skill Development/Guided Practice (continued) • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret the area of the rectangle. 1 2 3 4 4 units 5 units 5 units 4 units 8 units 4 units 4 units How did I/you identify the side lengths? How did I/you find the area of the rectangle? CFU 8 units 2 3

  5. Skill Development/Guided Practice (continued) • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret the area of the rectangle. 1 2 3 4 How did I/you identify the side lengths? How did I/you find the area of the rectangle? CFU 2 3

  6. Skill Development/Guided Practice (continued) Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards How did I/you identify the side lengths? How did I/you find the area of the rectangle? CFU 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 2 3 3 4 5

  7. Relevance • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. 1 Finding the area of rectangles will help you compare the size of objects. The area of Nathan’s garden is 42 square units. The area of Samantha’s garden is 24 square units. Sample Test Question: 26. What is the area of the rectangle? A 13 square units B 36 square units C 13 units D 36 units Nathan’s garden is larger than Samantha’s garden. 9 units 2 Finding the area of rectangles will help you do well on tests. 4 units Does anyone else have another reason why is it relevant to find the area of rectangles (Pair-Share) Why is it relevant to find the area of rectangles? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why? CFU

  8. The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Skill Closure Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret the area of the rectangle. 1 2 3 4 Word Bank 5 units area rectangle square units side lengths 4 units 4 units 5 units 7 units 4 units Access Common Core 4 units + 7 units = 11 units Clayton found the area of the rectangle by adding the side lengths. Explain why Clayton is incorrect in finding the area of the rectangle. ________________________________________________________ ________________________________________________________ Summary Closure What did you learn today about finding the area of rectangles? (Pair-Share) Use words from the word bank. Day 1 ____________________________________________________________ _________________________________________________________________ Day 2 ____________________________________________________________ _________________________________________________________________

  9. Name Independent Practice • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret the area of the rectangle. 1 2 3 4 7 units 5 units 5 units 7 units

  10. Independent Practice (continued) • The area of a rectangle is the amount of space that covers a whole rectangle. • Area is measured in square units. (units × units = square units) • The area of a rectangle can be found by multiplying the side lengths. Find the area of rectangles using multiplication. Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards Read the problem and identify what you need to find. (underline) Identify the side lengths. (circle or write) Find the area of the rectangle by multiplying side lengths. Interpret the area of the rectangle. 1 2 3 4 7 units 4 units 4 units 7 units

  11. Independent Practice (continued) Units meters ×meters =square meters inches ×inches =square inches yards ×yards =square yards

  12. Name Periodic Review 1 3 units 5 units 5 units 3 units 3 feet 2 feet 2 feet 3 feet

  13. Name Access Common Core 1. Gerald is putting new wood flooring in his room. What information would help him find out how much wood he needs to cover the floor: the distance around the room or the area of the room? Explain your answer. ______________________________________________________________________________________________________________________________________ 2. Monique is filling her flowerbed with soil. What information would help her find out how much soil she needs to cover the flowerbed: the distance around the flowerbed or the area of the flowerbed? Explain your answer. ______________________________________________________________________________________________________________________________________ 3. Carlene is painting her bedroom wall. What information would help her find out how much paint she needs to cover the wall: the distance around the room or the area of the wall? Explain your answer. ______________________________________________________________________________________________________________________________________

  14. Name Periodic Review 2

  15. Name Access Common Core 1. Roslyn is replacing the felt on her pool table. She has enough felt to cover 35 square feet. Her pool table is a rectangle with dimensions1 of 4 feet by 8 feet. Does Roslyn have enough felt to cover her pool table? Explain your answer. ______________________________________________________________________________________________________________________________________ 2. Nelson is covering his rectangular dining room table with a new tablecloth. The table is 3 feet by 4 feet. His tablecloth is also rectangular and covers 10 square feet. Does he have enough tablecloth to cover the table? Explain your answer. ______________________________________________________________________________________________________________________________________ 3. Lenore is retiling her bathroom floor. She has enough tile to cover 75 square feet of floor. The bathroom floor is a rectangle with dimensions of 5 feet by 15 feet. Does Lenore have enough tile to cover the floor? Explain your answer. _________________________________________________________________________________________________________________________________ 1 measurements Vocabulary

  16. Name Periodic Review 3 7 feet 2 feet 2 feet 7 feet Access Common Core 7 feet 8 inches 2 meters 1. Choose Yes or No to indicate whether each statement is true about the rectangle. 3 meters 3 meters 6 inches 6 inches 8 feet 8 feet 2 meters 8 inches 7 feet O Yes O No O Yes O No O Yes O No 1a. The number of 1 square inch tiles it would take to cover the rectangle is 48. 1b. The area of the rectangle can be found by adding the side lengths. 1c. The area of the rectangle is 48 square inches. O Yes O No O Yes O No O Yes O No 2a. The area of the rectangle is 56 square inches. 2b. The area of the rectangle can be found by multiplying adjacent side lengths. 2c. The number of 1 square foot tiles it would take to cover the rectangle is 30. 2. Choose Yes or No to indicate whether each statement is true about the rectangle. O Yes O No O Yes O No O Yes O No 3a. The number of 1 square meter tiles it would take to cover the rectangle is 6. 3b. The area of the rectangle is 10 square meters. 3c. The area of the rectangle can be found by multiplying 3 meters by 2 meters. 3. Choose Yes or No to indicate whether each statement is true about the rectangle.

  17. Name Access Common Core (Performance Task) Use a ruler to measure 3 rectangles in the classroom. Then find the area of the rectangles. Find the area of rectangles. Identify an object in your classroom shaped like a rectangle. Draw a picture of the object. Measure sides of the object and label the side lengths. Find the area of the object. 1 2 3 4

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