Graphs
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This lesson plan teaches students how to read and construct line graphs using data about temperature readings, weight measurements, and school enrollment numbers. Students will practice plotting points, interpreting existing line graphs, gathering and presenting data in a graph of their own, answering questions about given line graphs, and defining what makes an effective line graph. The lesson aims to build students' cognitive, psychomotor and affective skills for accurately working with line graph data representations.
Graphs
- 1. Lesson Plan in Mathematics Grade 5 Grade V – Acacia (7:50-8:50) Molave (8:50-9:50) I. Learning Objectives Cognitive: Read and interpret data presented on a line graph Psychomotor: Construct a line graph Affective: give accurate interpretation of data II. Learning Content Skills: Reading and interpreting data presented on a line graph Reference: BEC-PELC III.D.2.1 Mathematics 5: Mathematics for the Better Future,Coronel and Bamba, pp. 268-269 Materials: PPT presentation of line graphs Value: Accuracy III. Learning Experiences A. Preparatory Activities 1. Drill: Plotting of points on the Grid Game: “What Am I? Group the pupils into 4. Each group should have 5 representatives. Introduce how to plot points on the grid. Let the pupils identify the figure by plotting the points that the teacher will announce. As soon as the last point is plotted on the grid, the last pupil will then connect all the points on the grid. The team who can identify first the figure formed is the winner. Points/ordered pairs: 1. (4, 7) 2. (3, 6) 3. (5, 2) 4. (7, 3) 5. (8, 5) 6. (6, 7) 2. Review Have the pupils answer the questions below using the graph of temperature readings in a day on the left. 6:00 8:00 10:00 12:00 1. What was the lowesttemperature? the highest? 2. At what time of the day the temperature wascoolest?warmest? 3. What do you call thiskindof graph?
- 2. 3. Motivation Ask the pupils: Do you see any graph on your school bulletin board? What information does the graph give? B. Developmental Activities 1. Presentation Activity: “Data Gathering” Using the format below. Have the pupils gather data about the pupil’s favourite fruits. Let them make their own graph out of the data that they have gathered. Have them report their work. Pupil’s favourite Fruits Fruits Number of Pupils Male Female Total Mango Orange Apple Rambutan Avocado 2. Fixing Skills A. Let the pupils answer the questions in the box using the graph. Harry’s Average Weight (2001-2008) 2001 2002 2003 2004 2005 2006 2007 2008 YEAR A V E R A G E W E I G H T (In kg) Questions: 1. What was Harry’s average weight in 2005? 2. What is the title of the graph? 3. What is the scale used? 4. In what year did Harry weigh the heaviest? the lightest? 5. What is the average weight of Harry from year 2001 to 2008?
- 3. 3. Generalization Ask the pupils: What is a graph? A line graph? Why are line graphs useful? How do you interpret data presented in a line graph? 4. Application 1. Have the pupils answer the following questions using the graph below. Carlo’s Weight for 6 months 40 38 36 3 34 32 30 May June July Aug Sept Oct 1. During what month did Carlo gain weight the most/the least? 2. In what month did Carlo lose weight? 3. How many kilograms did Carlo weigh in September? 4. How much more is the weight of Carlo in the month October than the month of May? 5. How much less is the weight of Carlo in the month of July than September? IV. Evaluation (5 points) Make a Line Graph for a given data and answer the following questions. Year Number of Pupils 2003 2004 2005 2006 2007 400 550 700 850 1000 K I L O G R A M
- 4. 1. What year has the greatest number of enrolees? 2. What is the title of the graph? 3. How much less is the number of enrolees in the year 2006 than in the year 2007? 4. How much more is the number of enrolees in the year 2006 than in the year 0f 2003? 5. How much less is the total number of enrolees in the year 2003 and 2004 than in the year of 2007? 6. (5 points) What is the average number of enrolees in UES from the year 2003 to 2007? V. Assignment a) Draw a bar graph for a given data. 10 pts. Number of seedlings planted by Boy Scouts Prepared by: RENEL R. SITON Intern Checked: LYNARD BOBBY L. ASIRIT Critic Teacher Seedling Number of seedlings planted Mango Banana Avocado Rambutan Papaya 60 35 18 40 25