Concepts
accuracy
amount
angle
arc
area
content
data
data bias
degrees
diameter
graph
greater than/less than
increase/decrease
percentages
proportion
proportional parts
protractor
radius
sample
space
title
To relate the title to the contents of the graph.
To be able to multiply numbers with several place values.
To be able to divide numbers with multiple place values.
To read percentages on a circle graph.
To be able to interpret information on a circle graph.
To be able to compare information on a circle graph with other sources.
To be able to draw inferences from information on a circle graph.
To be able to create circle graphs related to a hypothesis.
To use the 360 degrees of a circle when calculating the size of portions of a graph.
To use division to calculate the percent of the 360 degrees of a circle which should be allotted to each portion of a circle graph.
To be able to measure with a protractor.
To be able to draw with a protractor.
(One day = 24 hours x 60 minutes in an hour = 1440 minutes)
Amount of Time Spent Doing Various Activities
Eating - 1 hour
Sleeping - 8 hours
Driving - 1 hour
Personal needs - 1 hour
Studying or attending classes - 10 hours
Recreation - 1 hour
Working at a job - 2 hours
Activity
Eating - 60 ÷ 1440 = 4.16%
.0416 x 360 = 14.9 degrees
15 degrees
Sleeping - 480 ÷ 1440 = 33.3%
.333 x 360 = 119.9 degrees
120 degrees
Driving - 60 ÷ 1440 = 4.16%
.0416 x 360 = 14.9 degrees
15 degrees
Personal Needs - 60 ÷ 1440 = 4.16%
.0416 x 360 = 14.9 degrees
15 degrees
Studying or attending classes - 600 ÷ 1440 = 41.6% .416 x 360 = 149.7 degrees 150 degrees
Recreation - 60 ÷ 1440 = 4.16 %
.0416 x 360 = 14.9 degrees
15 degrees
Working at a job - 120 ÷ 1440 = 8.3%
.083 x 360 = 29.8 degrees
30 degrees
Material from social studies for mathematics textbooks that gives ideas for teaching about graphs.
Graphs from textbooks, magazines, newspapers, or other literature.
Ideas from the Internet for teaching about graphs.
Statistical information that can be used to teach graphs.
Pictures that show various quantities of objects that can be placed on a graph.
Graph paper.
Pictures of tools that can be used to build graphs. (Rulers, protractors, etc.)
Information about computer programs that help construct graphs.