LESSON PLAN IN MATHEMATICS 8 DOCX

Title	LESSON PLAN IN MATHEMATICS 8
Author	Asmira Mangontra
Pages	3
File Size	50.3 KB
File Type	DOCX
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LESSON PLAN IN MATHEMATICS 8 I. OBJECTIVES: 1. Define the three measures of central tendency. 2. Compute for the mean, median, and mode of ungrouped data. 3. Apply the concept of the three measures of central tendency in raw data. 4. Cooperate actively in a group activity. II. SUBJECT MATTER: A. TOPIC: Measures of Central Tendency of Ungrouped Data B. REFERENCE: e-Math by Orlando A. Oronce and Marilyn O. Mendoza, pp. 513-517 C. MATERIALS: 2 boxes of questions Manila Paper Coins Marker Dartboard with dartpins D. SUBJECT INTEGRATION: Biology E. SKILL/S: Computing F. VALUES: Cooperation, Sportsmanship G. CONCEPT: To compute for the mean, add all the given data and divide it to the number of data given. For the median, if the number of ordered raw data is odd, the median is in the middle position, and if even, the mean of the two middle data of an ordered data is the median. The number that appears most often in a collection is the mode. III. PROCEDURES: A. PRE-DEVELOPMENTAL ACTIVITY 1. Review Review the class about the different ways of organizing data. 2. Drill From the data presented by the teacher, determine whether the organization of data belongs to a grouped frequency distribution, raw data, and stem-and-leaf plot. 3. Motivation Ask the students the following questions: a. Have you ever experienced to compute the average of your grades for you wanted to compare it with your other classmates' grades? How did you compute it? b. Have you ever experienced to check the papers of your classmates in a test, organizing them, and knowing who will divide the results into two equal groups? c. Have you ever experienced to determine your grade that you always encounter in your report card? d. Do you know that in these everyday experiences at school, we always encounter the three measures of central tendency? Why do you say so? B. DEVELOPMENTAL ACTIVITY 1. Presentation a. Model the process of finding the mean, median, and mode of ungrouped data using the stacks of coins. Using the coins, duplicate the 7 stacks given: 7 coins, 11 coins, 6 coins, 11 coins, 8 coins, 10 coins, and 17 coins. Each stack represents a number in a set of data. Arrange the stacks in order of the number of coins in each stack. Start with the stack containing the least number of coins and end with the stack containing the greatest number of coins. Record the number of coins in each stack. Locate the middle stack. How many coins are in the middle stack? The median is the middle number in an ordered data set. What is the median of this data set? Two of the stacks have the same number of coins. How many coins are in each of these stacks? The number that appears most often in a collection of data is called the mode. What is the mode of this set of data? There are seven stacks of coins. Rearrange the coins so that each of the seven stacks contains the same number of coins. Describe how you do this. When the coins are evenly distributed over the seven stacks, the number in each stack is called the mean. The mean is the most common definition of the word average. What is the mean of this data set? Describe how to find the mean using arithmetic....