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OF ALL MERCER MIDDLE SCHOOL STUDENTS HAVE ADMITED TO CONSUMING WATER Slide 2 Slide 3 How to set up successful graphs Slide 4 How to set up your graph! Slide 5 Y Axis (This is for your dependent variable) Slide 6 How to set up your graph! X Axis (This is for your independent variable) Slide 7 TAILS T T - Title Teacherss Favorite Singer Slide 8 TAILS T - T - Title A - Axis Teacherss Favorite Singer Y Axis = Dependent Variable X Axis = Independent Variable Slide 9 TAILS T - T - Title A Axis S Scale Teacherss Favorite Singer Decide on an appropriate scale for each axis. Choose a scale that lets you make the graph as large as possible for your paper and data Slide 10 How to determine scale Scale is determined by your highest & lowest number. In this case your scale would be from 2 22. Favorite Singer Number of Teachers Toby Keith22 Madonna15 Elvis11 Sting5 Sinatra2 Slide 11 TAILS T Title A Axis I Interval S Scale Teacherss Favorite Singer The amount of space between one number and the next or one type of data and the next on the graph. The interval is just as important as the scale Choose an interval that lets you make the graph as large as possible for your paper and data Slide 12 How to determine Intervals The interval is decided by your scale. In this case your scale would be from 2 22 and you want the scale to fit the graph. The best interval would be to go by 5s. Favorite Singer Number of Teachers Toby Keith22 Madonna15 Elvis11 Sting5 Sinatra2 Slide 13 TAILS T Title A Axis I Interval S Scale Teacherss Favorite Singer 0 5 10 15 20 25 Slide 14 TAILS T Title A Axis I Interval L Labels S Scale Teacherss Favorite Singer 0 5 10 15 20 25 Toby Keith Madonna Elvis Sting Sinatra LABEL your bars or data points Singers Give the bars a general label. What do those words mean? Number of Teachers Label your Y Axis. What do those numbers mean? Slide 15 When to use Bar graphs Bar graphs Used to show data that are not continuous. Allows us to compare data like amounts or frequency or categories Allow us to make generalizations about the data Help us see differences in data Line Graphs Line Graphs For continuous data useful for showing trends over time Slide 16 Slide 17 Question #1 Identify the graph that matches each of the following stories: I had just left home when I realized I had forgotten my books so I went back to pick them up. Slide 18 Question #2 Identify the graph that matches each of the following stories: I started out running and slowed down as I got tired Slide 19 Question #3 Identify the graph that matches each of the following stories: Things went fine until I had a flat tire. Slide 20 Question #4 Identify the graph that matches each of the following stories: I started out calmly, but sped up when I realized I was going to be late. Slide 21 Question #4a Identify the graph that matches each of the following stories: The rock fell from the top of the cliff Slide 22 Question #4b Identify the graph that matches each of the following stories: I went to the store before school Slide 23 Question #4c Identify the graph that matches each of the following stories: School was cancelled on the way to school, but was later opened Slide 24 Question #5 The graph at the right represents the typical day of a teenager. Answer these questions: What percent of the day is spent watching TV? 100 25 4 8 33 17 = ? 13% Slide 25 Question #6 The graph at the right represents the typical day of a teenager. Answer these questions: How many hours are spent sleeping? 24 hours x 33% = ? 8 hours Slide 26 Question #7 The graph at the right represents the typical day of a teenager. Answer these questions: What activity takes up the least amount of time? Studying Slide 27 Question #8 The graph at the right represents the typical day of a teenager. Answer these questions: What activity takes up a quarter of the day? = 25% Going to School Slide 28 Question #9 The graph at the right represents the typical day of a teenager. Answer these questions: What two activities take up 50% of the day? 33% + 17% = 50% Talking on Phone & Sleeping Slide 29 Question #9a The graph at the right represents the typical day of a teenager. Answer these questions: Which activity took about 4 hours? 17% x 24 hours = ~4 hours Slide 30 Question #10 Answer these questions about the graph on the right: How many total miles did the car travel? AB = 60 BC = 0 CD = 30 DE = 190 Total = 280 Slide 31 Question #11 Answer these questions about the graph on the right: What was the average speed of the car for the trip? Total distance = 280 miles Total time = 25 hours Average speed = 280 miles / 25 hours 11.2 miles/hour Slide 32 Question #12 Answer these questions about the graph on the right: Which line represents the fastest speed? DE = quickest change Slide 33 Question #13 Answer these questions about the graph at the right: What is the dependent variable on this graph? DV = Quantity Demanded Y-axis Slide 34 Question #14 Answer these questions about the graph at the right: Does the price per bushel always increase with demand? No. $5 has lowest demand and $2 has highest. Slide 35 Question #15 Answer these questions about the graph at the right: What is the demand when the price is 5$ per bushel? 10 Bushels per week