2 GraphsGraphs are useful tools for organizing and showing information. People can collect data, or information, by taking surveys. Then they can create tally charts and graphs to help people visualize data, answer questions, and make predictions.
3 Tally Chart Color of Smiley Faces Number of Balls Tally Frequency red Tally charts help people count. Each tally mark in a tally chart represents one object. For example, to count three smiley faces, you make three tally marks in the chart. Tally marks are grouped in sets of five, which makes counting easier. Instead of counting marks one-by-one, you can skip-count by fives and add on any remaining marks.Color of Smiley FacesNumber of BallsTallyFrequencyred/1orange///3green////5blue//2black
4 Length of Calls in Minutes Tally ChartLength of Calls in MinutesNumber of CallsTallyFrequency3/14///56//27////8//// //910Look at this tally chart.How many 7 minute phone calls were made?5 phone callsHow do you know?There were 5 tally marks in the 7 minute row so the frequency was 5.
5 Balls Taken Out For Recess Line PlotA line plot shows data on a number line with x or other marks to show frequency. This line plot shows the types of balls the children took outside to recess. The count of x marks above each category tells you the number of balls for each category.XBalls Taken Out For Recess
6 Length of Calls in Minutes Look at this line plot. How many 10 minute phone calls took place?1 phone callNumber of Phone CallsX345678910Length of Calls in Minutes
7 Length of Calls in Minutes Where does most of the data cluster? What does this tell you?Most of the date clusters from 7 – 9 minutes.Most of the phone calls were 7 to 9 minutes long.Where is the gap in the line plot? What does this tell you?There is a gap at 5.No one made a phone call lasting 5 minutes.Number of Phone CallsX345678910Length of Calls in Minutes
8 What the students ate for lunch today PictographLegendEach picture represents two students.A pictograph is a graph drawn with pictures. Each piece of information collected is drawn as a picture. This pictograph shows what each child had for lunch today.How many children ate hamburgers today at lunch?6 studentsHow do you know?There are 3 hamburgers and each hamburger represents 2 students.How many students ate pizza for lunch today?9 studentsThere are 4 and half pizzas and each pizza represents two students.What the students ate for lunch today
9 Study this pictograph. What is this pictograph showing? The number of books these kids read during the summer.Number of Books Read During SummerReaderNumber of BooksKendraJoelDanMaeEmilyKey: = 4 books
10 Tips on how to draw a pictograph: A good pictograph shows the information clearly.A good pictograph has a title.A good pictograph has pictures showing information.A good pictograph has the pictures in a grid.A good pictograph has pictures which are the same size.ALWAYS REMEMBER TO LABEL!Now you get to make your own pictograph!!!
11 Draw your own Pictograph Here is the information for your pictograph.A 5th grade class was asked what they liked to do best during recess. Here is what they answered:8 students said they liked to swing, 6 students said they liked to play on the teeter totter, 3 students liked to play on the slide, and 2 students liked to jump rope.Now draw your pictograph. Remember your title and your legend!
12 What the 5th Grade Students Like to Play at Recess LegendEach picture represents two students.
13 How did you decide what each picture would represent? Possible Answer:I let each picture represent 2 books because 8, 6, and 2 are divisible by 2, and I could show 3 using a whole and half picture.
14 Bar GraphBar graphs are used to display data using a horizontal or vertical rectangular bar that levels off at the appropriate level. This bar graph shows what students in the 6th grade like to do best during the summer.
16 How much time did Ken spend riding a bike on Sunday and Monday? 50 minutesOn what day did Pat ride his bike the longest?WednesdayDid Ken or Pat ride their bike less on Wednesday?Ken
17 Draw your own Bar Graph Here is the information for your bar graph. Tony and Sherry both worked at Pizza Hut. Here are the hours they each worked last week.Tony worked Sunday for 8 hours, Tuesday for 3 hours, Wednesday for 4 hours, and Friday for 6 hours. Sherry worked Monday for 4 hours, Tuesday for 4 hours, Wednesday for 3 hours, Friday for 5 hours, and Saturday for 6 hours.Don’t forget a title for your graph. Remember to label!
19 HistogramHistograms are used to display data using a horizontal or vertical rectangular bar that levels off at the appropriate level. Histograms are very similar to bar graphs except that the bars are connected and show a block of time or measurement. This bar graph shows how long children stayed in the swimming pool on a hot afternoon.
21 During which time period was the trail the most crowded During which time period was the trail the most crowded? The least crowded?7 P.M. – 10 P.M.; 1 P.M. – 4 P.M.Can you tell how many cyclists were on the trail at 5:00 P.M.? Explain.No; the histogram shows data for intervals of time, not individual times.On another day, 3 more cyclists were on the trail at 8 A.M., 5 fewer were on at 2:00 P.M., and 10 more were on at 5:30 P.M. How would the histogram for this day be different?The 7 A.M. – 10 A.M. bar would go up to 58;The 1 P.M. – 4 P.M. bar would go down to 20 and the 4 P.M. – 7 P.M. bar would go up to 70.
22 Draw your own Histogram Here is the information for your histogram.The local amusement park had visitors all day long on Saturday. From 10:00 – 12: visitors were at the park, from 12:00 – 2:00, 300 visitors were at the park, from 2:00 – 4: visitors were at the park, from 4:00 – 6:00, 350 visitors were at the park, and from 6:00 – 8:00, 200 visitors were at the park.Don’t forget a title for your graph. Remember to label!
24 Plotting Ordered Pairs An 'ordered pair' is simply two numbers in a certain order. For example, the numbers '2' and '3' can form two ordered pairs:2, 3 and 3, 2When an ordered pair is used to locate a point on a grid, the two numbers are called the 'coordinates' of the point. In this diagram, the point (2, 3) has been marked with a red dot. The coordinates of this point are '2' and '3'. On a graph grid, the point (0,0) is called the 'origin' The first coordinate of a plotted point is called the 'x' coordinate (move over). The second coordinate of a plotted point is called the 'y' coordinate (move up). So, to locate the point: (2, 3) on our graph grid above, we start at the origin, move 2 units horizontally (over) and 3 units vertically (up).
25 Coordinate Graphs & Ordered Pairs What are the coordinates for these points?B (1, 3)D (4, 9)F (2, 8)
26 Use the coordinate grid to name each ordered pair. B (1, 8)C (4, 4)D (3, 0)E (6, 5)F (2, 9)
27 Line GraphLine Graphs can be used when you're plotting data that has peaks (ups) and valleys (downs), or that was collected in a short time period. This line graph shows how many children were in the 6th grade over the past 5 years.
29 During how many years did Beth travel more than 4 times? In which years did the number of trips increase?1997 – 1998In what year did Beth travel the least?1995
30 Draw your own Line Graph Here is the information for your line graph.Last week, Brian’s school had snow days all week long. Here is how much snow fell each school day last week. On Monday 4 inches of snow fell, on Tuesday, 2 inches of snow fell, on Wednesday 4 inches of snow fell, on Thursday 6 more inches of snow fell, and on Friday 1 inch of snow fell.Don’t forget a title for your graph. Remember to label!
32 Stem and Leaf PlotA Stem and Leaf Plot is a method of organizing intervals or groups of data.Here is an example:Key: 3 | 6 = 36A stem and leaf plot allows you to see easily the greatest, least, and median values in a set of data. It gives you a quick way of checking how many pieces of data fall in various ranges. It also lets you see the value of every piece of data.
33 Look at this Stem and Leaf Plot and answer the questions. How many students’ heights were measured? 19 students How many students are taller than 56 inches? 10 students What is the height of the tallest student? 63 inches What is the mode of the students’ heights? 57 inches What is the range of the students’ heights? 16 inches What is the median student height?Look at this Stem and Leaf Plot and answer the questions.478952613Key: 4 l 7 means 47 inches
34 Draw your own Stem and Leaf Plot Here is the information for your Stem and Leaf Plot.Yesterday, Tina’s teacher kept track of how many ounces of milk each student drank in one day. Here is the data she collected: 12, 20, 8, 32, 24, 32, 36, 21, 28, 32.Don’t forget a title for your graph. Remember to label!
35 Milk Drunk in One Day812436Key: 1 l 2 means 12 ounces
36 SURVEYSPopulation – group you want information aboutSample – a part of the populationRepresentative – if the sample you survey represents all the studentsNot representative – only a certain group of the population is representedRandom – every student has an equal chance of being surveyedNot random – only certain students have a chance of being surveyed.
37 At a band concert, survey 100 people to find out whether people in your town prefer vocal or instrumental music.PopulationA. People in your townB concert-goersC. Band membersSampleA band membersB. People in your townC concert-goers
38 Survey 10 band members to find out how long band members practice each day. PopulationA. 10 band membersB. All students in schoolC. All band membersSampleA. All band membersB. 10 band membersC. All students in school
39 Survey every 10th person in a phone directory to find out if adults in one city prefer concerts, plays, or movies.PopulationA. All adults with phonesB. All adults in one cityC. Every 10th person in phone directorySampleA. Every 10th adult in phone directoryB. All adults with phonesC. All adults in one city
40 During band practice, survey all drummers to find out if fifth graders prefer playing brass, woodwind, string, or percussion instruments.PopulationA. DrummersB. Band membersC. Fifth gradersSampleA. Band membersB. Fifth gradersC. drummers
41 In a school of 600 students, survey every 5th student entering the cafeteria to find out how many students have attended a concert.PopulationA studentsB. 5 studentsC. Every 5th student entering the cafeteriaSampleA. 5 studentsB. Every 5th student entering the cafeteriaC students
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