GraphsGraphs V. Martinez Essential Question In what ways do we use graphs to solve problems in our...
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Transcript of GraphsGraphs V. Martinez Essential Question In what ways do we use graphs to solve problems in our...
GraphsGraphsGraphsGraphs
V. MartinezV. Martinez
Essential Question• In what ways do we use graphs to
solve problems in our daily lives?
Line Plot –organizes data
Ages of People in an apartment building.
Bar Graph• A bar graph is used to compare
amounts.
Pictograph• A pictograph uses pictures or
symbols to represent an assigned amount of data.
• A pictograph takes the form of a bar graph.
Advantages of a pictograph
• A pictograph is easy to read.• 2. They show trends in data
clearly.• 3. They are fun to use.
Disadvantages of a pictographs
• It may be difficult to find a symbol or picture to represent the data.
• 2. The key can be confusing to read. 3. A pictograph can be difficult to make.
Line Graph• A line graph is used to show
change over time.• You can use a line graph to look
for trends and to make predictions.
Temperature Line Graph
Click here to see more about line graphs
• http://www.mathgoodies.com/lessons/graphs/line.html
Line Graph - a graph that shows changes over time.
Use the data in the table to make a Line
Graph.
Y e a r 1 9 9 5 1 9 9 6 1 9 9 7 1 9 9 8 1 9 9 9
A v g . R a i n f a l l 8 1 0 7 1 3 5
Each year the average rainfall was measured
in inches.
1. Draw the “L” Box2. Put the title.
• Average Yearly Rainfall• l• l• l• l• l• L________________________
3. Label the x and y axis
• Average Yearly Rainfall• 10l• 8 l• 6 l• 4 l• 2 l• 0 L________________________• 1995 1996 1997 1998 1999
• Average Rainfall
Add the data by placing dots.
• Average Yearly Rainfall• 10l x• 8 l x• 6 l x • 4 l• 2 l x• 0 L_______________________x_• 1995 1996 1997 1998 1999
• Average Rainfall
Average Yearly Rainfall
0
2
4
6
8
10
12
14
1995 1996 1997 1998 1999
Rai
nfal
l in
inch
es
Year
Avg. Rainfall
Connect the dots.
LABELS LEGEND
E
TITLE
Draw a line graph.• Temperatures In NY City
• Day 1 43° F• Day 2 53° F• Day 3 35° F• Day 4 57° F• Day 5 59° F• Day 6 67° F
Compare your graph.
Use the data to make a line graph.
• Sam's Weight• Month Weight in Kg• January 49• February 54• March 61• April 69• May 73
The graph is easier to read than the table.
What do you notice about Sam’s weight?