Area of trapezoid and circle problems.
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This lesson plan is for a 5th grade mathematics class. The students will learn to solve word problems involving the area of trapezoids and circles. They will practice mental math, drills, and reviewing formulas. Then the teacher will present sample problems for the students to work through using a four-step problem solving process. This involves understanding the question, identifying relevant facts, planning a strategy, solving using the strategy, and checking the answer. The students will then solve similar practice problems and problems applying the concepts. Their understanding will be evaluated through additional word problems to solve. For homework, students are assigned one final word problem to solve.
Area of trapezoid and circle problems.
- 1. Lesson Plan in Mathematics Grade 5 Grade V – Acacia (7:50-8:50) Molave (8:50-9:50) I. Learning Objectives Cognitive: Solving word problems involving area of trapezoid and circle Psychomotor: Write solutions of word problems Affective: Show patience in solving problem II. Learning Content Skills: Solving word problems involving circumference measure. Reference: BEC-PELC III.3 Mathematics 5: Mathematics for the Better Future, Coronel and Bamba, pp. 256-259 Materials: PPT presentation, Copies of word problems Value: Creativity in doing things III. Learning Experiences A. Preparatory Activities 1. Mental computation A circular ground has a circumference of 45 m. What is its diameter/radius? 2. Drill Have the students find the quotient of the following: 18 35 63 36 ÷ 4 ÷ 5 ÷ 7 ÷ 9 3. .Review Ask the pupils: What are the formulas for finding the area of a trapezoid and a circle? B. Developmental Activities 1. Presentation
- 2. Group the pupils into 4. Let the pupils solve the problem below using the four step plan. 1. The circumference of a circular flower bed is 47.1 m. What is its area? (Use 𝜋 = 3.14) 2. The area of a trapezoidal garden with the bases of 45 and 30 is 150 m2 . What is the value of height? Understand: -Identify the question. -Identify the relevant facts Plan: - Choose a strategy Solve: -Perform the strategy. Check: -verify if the answer is correct. 2. Fixing Skills Solve these problems. 1. The circumference of a circular clock is 25 cm. What is its area? 2. The area of a trapezoidal garden with the bases of 10 m and 20 m is 150 𝑚2 . What is the value of its height? 3. Generalization Ask the pupils: How do we solve problems involving areas of trapezoids and circle? In solving problems involving areas of Trapezoids and Circle. First, identify the question and relevant facts. Second, use appropriate formula. Third, perform the strategy and lastly, verify if the answer is correct. 4. Application The trapezoidal field has a circular fishpond surrounded by a carabao grass. How many square meters of grass were used to surround it?
- 3. 32 m 32 m What is asked? What are given? What is the solution? IV. Evaluation Read the problem carefully. (5 points each) 1. The circumference of a circular mirror is 75 𝑐𝑚2 . What is its area? 2. The area of a trapezoidal ground with the bases of 9 m and 15 m is 96 𝑚2 . Find the value of its height. V. Assignment Solve this problem. 1. The living room of Mrs. Sola’s house is in the shape of a trapezoid with one of the parallel sides 4 m long and the other 6 m long. The distance across these sides is 7 m. What is the area of a carpet that would fit the room? Prepared by: RENEL R. SITON Intern Checked: LYNARD BOBBY L. ASIRIT Critic Teacher 20 m