This excerpt relates to students' work--as described in Table 1--on the

circle graph budget activity that tasks students with creating a

circle graph representing their party budget.

Journal of the Association for Computing Machinery July 1989 Recognizing

Circle Graphs in Polynomial Time Csaba P.

Use the circle (above right) to make a

circle graph from the data in the table.

Students may be interested to compare the "Faith in America"

circle graph with the "Major Religions of the World" on p.

Their answers are displayed in the

circle graph below.

The

circle graph below shows which sports caused them.

Create a

circle graph for male votes and one for female votes.

A

circle graph, or pie chart, best represents data that are percentages of a whole.

They recalled seeing data represented by

circle graphs in social studies, and their work with fraction circles helped them visualize how a

circle graph could show parts of a whole.

The Graph Club also gives students the opportunity to explore a

circle graph [ILLUSTRATION FOR FIGURE 6 OMITTED], although we do not study

circle graphs until later in the year.

With this program, six types of graphs and a frequency table are available: pictograph, bar graph,

circle graph, loops (Venn diagrams), grid plot, and line graph.

Students saw that data displayed in a

circle graph enable a reader to compare quickly one part of the data to the whole set.