Lesson Plan- Math 7 2o3m6a
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Lesson Plan Mathematics 7 I.
Objective: At the end of the lesson, the students should be able to: 1. Find the area of a rectangle
II.
Subject Matter A. Topic: Surface Measure B. Reference: Mathematics 1 pp. 378-389 Zanita C. Castillo, Soledad Abuel and Thucydides M. Delfin C. Materials: geo board, colored paper, illustration board
III.
Procedure Teacher’s Activity A. A. Preparatory Activities 1. Prayer Everybody, please stand. Warren, kindly lead the prayer. 2. Greetings Good afternoon, class! Nice to see you, too. You may take your seats. 3. Checking of Attendance Krizza, is there any absent today?
Student’s Activity
Our dear Lord, bless us all today… Good afternoon, ma’am! Good afternoon, visitors! It’s nice to see you.
None, ma’am.
B. Motivation 1. Review Last meeting, we discussed perimeter. As a review, given the length of a rectangle which is 12cm and width is 4cm, find its perimeter. What formula are we going to use? P= 2(L+W), P= S1+S2+S3+S4 or P= 2L+2W What is the answer? P= 32cm Very good! 2. Presentation Posting the figure on the board.
Look at the figure on the board. Rectangle What type of polygon is this? Very good! How many small unit regions can you find in the interior 30 unit regions of the rectangle? Very good! Based on the figure given, what do you think is the relationship of the figure to our Answers may vary lesson today?
3. Discussion Answers may vary What do you mean by area? The number of square units which covers the surface is called area. The area of any two dimensional figure can be determined by imagining its surface completely filled with square regions called square units. A square which side is one unit long has an area of one square unit. The square centimetre is a standard unit of area.
1cm The figure represents 1 square centimetre. How do we express 1 centimetre in symbol? 1 cm² That’s right! Example #1 A basketball court measures 4 metres wide and 7 metres long. What is the area of the court? Study how to find the area using a diagram.
How many rows are there? How many squares in each row? Count the numbers of squares. How many squares are there in the diagram? Aside from counting the number of squares inside the rectangle, what are we going to do with 4 and 7 to get 28? Very good! What do we call to the longer side of a rectangle? How about the shorter side? So, what do you think is the formula for the area of a rectangle? What is the area of the court? What is the unit used? Example #2. Given: A= 18cm² L= 6cm W= ?
4 rows 7 squares
We multiply 4 and 7 Length Width A= LxW 28m² Square metres
Given the area and the length, what are we going to do to get the measure of the width? Very good! What is the answer? Divide the area by the length 4. Fixing Skills We’ll be having a game entitled “Pop and Answer Me”. Listen to the mechanics of the game. Each group will have 10 representatives as players. Each player will come forward and then get the balloon and pop it because inside there’s question to be answered. Put your answer on the illustration board provided. The group who will first raise their board with the correct answer will get 2 points. The remaining group who get the same answer will get only 1 point. The more questions you answered, the more points you earned. The highest pointer will be declared winner. Answer it as fast Yes, it is! as you can. Is that clear? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
L= 15cm L= ____ L= 10cm L= ____ L= 10cm L= 1.5m L= 8.2cm L= 7½m L= 20m L= ____
W= 45cm W= 5m W= ____ W= 6cm W= ____ W= ____ W= 1.28cm W= 8m W= ____ W= 10cm
A=____ A= 50m² A= 30m² A= 48cm² A= 25cm² A= 1.2m² A= _____ A= _____ A= 60m² A= 70.5cm²
5. Valuing Why is it important to study the area of rectangle? Answers may vary 6. Generalization How can we find the area of rectangle? We can find the area of rectangle by multiplying the linear measure of length and width. 7. Evaluation Directions: Copy and complete the table. Length 1. 2. 3. 4. 5.
16dm ____ 20m ____ 11cm
Width 12dm 10cm ____ 5m 7.5cm
Area ____ 60cm² 100m² 75m² ____
192dm² 6cm 5m 15m 82.5cm²
IV.
Assignment Find the area of a playground which length is 550m and width is 345m?
Prepared by:
JENELYN C. MAGRACIA Student Teacher
Objective: At the end of the lesson, the students should be able to: 1. Find the area of a rectangle
II.
Subject Matter A. Topic: Surface Measure B. Reference: Mathematics 1 pp. 378-389 Zanita C. Castillo, Soledad Abuel and Thucydides M. Delfin C. Materials: geo board, colored paper, illustration board
III.
Procedure Teacher’s Activity A. A. Preparatory Activities 1. Prayer Everybody, please stand. Warren, kindly lead the prayer. 2. Greetings Good afternoon, class! Nice to see you, too. You may take your seats. 3. Checking of Attendance Krizza, is there any absent today?
Student’s Activity
Our dear Lord, bless us all today… Good afternoon, ma’am! Good afternoon, visitors! It’s nice to see you.
None, ma’am.
B. Motivation 1. Review Last meeting, we discussed perimeter. As a review, given the length of a rectangle which is 12cm and width is 4cm, find its perimeter. What formula are we going to use? P= 2(L+W), P= S1+S2+S3+S4 or P= 2L+2W What is the answer? P= 32cm Very good! 2. Presentation Posting the figure on the board.
Look at the figure on the board. Rectangle What type of polygon is this? Very good! How many small unit regions can you find in the interior 30 unit regions of the rectangle? Very good! Based on the figure given, what do you think is the relationship of the figure to our Answers may vary lesson today?
3. Discussion Answers may vary What do you mean by area? The number of square units which covers the surface is called area. The area of any two dimensional figure can be determined by imagining its surface completely filled with square regions called square units. A square which side is one unit long has an area of one square unit. The square centimetre is a standard unit of area.
1cm The figure represents 1 square centimetre. How do we express 1 centimetre in symbol? 1 cm² That’s right! Example #1 A basketball court measures 4 metres wide and 7 metres long. What is the area of the court? Study how to find the area using a diagram.
How many rows are there? How many squares in each row? Count the numbers of squares. How many squares are there in the diagram? Aside from counting the number of squares inside the rectangle, what are we going to do with 4 and 7 to get 28? Very good! What do we call to the longer side of a rectangle? How about the shorter side? So, what do you think is the formula for the area of a rectangle? What is the area of the court? What is the unit used? Example #2. Given: A= 18cm² L= 6cm W= ?
4 rows 7 squares
We multiply 4 and 7 Length Width A= LxW 28m² Square metres
Given the area and the length, what are we going to do to get the measure of the width? Very good! What is the answer? Divide the area by the length 4. Fixing Skills We’ll be having a game entitled “Pop and Answer Me”. Listen to the mechanics of the game. Each group will have 10 representatives as players. Each player will come forward and then get the balloon and pop it because inside there’s question to be answered. Put your answer on the illustration board provided. The group who will first raise their board with the correct answer will get 2 points. The remaining group who get the same answer will get only 1 point. The more questions you answered, the more points you earned. The highest pointer will be declared winner. Answer it as fast Yes, it is! as you can. Is that clear? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
L= 15cm L= ____ L= 10cm L= ____ L= 10cm L= 1.5m L= 8.2cm L= 7½m L= 20m L= ____
W= 45cm W= 5m W= ____ W= 6cm W= ____ W= ____ W= 1.28cm W= 8m W= ____ W= 10cm
A=____ A= 50m² A= 30m² A= 48cm² A= 25cm² A= 1.2m² A= _____ A= _____ A= 60m² A= 70.5cm²
5. Valuing Why is it important to study the area of rectangle? Answers may vary 6. Generalization How can we find the area of rectangle? We can find the area of rectangle by multiplying the linear measure of length and width. 7. Evaluation Directions: Copy and complete the table. Length 1. 2. 3. 4. 5.
16dm ____ 20m ____ 11cm
Width 12dm 10cm ____ 5m 7.5cm
Area ____ 60cm² 100m² 75m² ____
192dm² 6cm 5m 15m 82.5cm²
IV.
Assignment Find the area of a playground which length is 550m and width is 345m?
Prepared by:
JENELYN C. MAGRACIA Student Teacher
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