Lesson: Make Circle Graph

Standard 

6NSO.C13  Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned and tips

6.DASP.2. Construct circle graphs using ratios, proportions, and percentages. 

Aim/Objective:

Key Points

·         Create circle graphs

·         Circle graphs are appropriate for surveys or other data that doesn’t overlap where the total represents 100%

·         To make a circle graph – change all numbers into percentages by finding the part of the whole each section represents

Assessment:

Students create a circle graph:

After lunch, 40 students had a choice of bread pudding, vanilla pudding or chocolate pudding for dessert. 

• 4 students chose bread pudding
• 20 students chose vanilla pudding
• 16 students chose chocolate pudding

A What is the percentage of students who chose each type of pudding

B  Label the circle graph with titles and percentages

Lesson

Notes:

·         As we know from yesterday, circle graphs show different parts of a whole (100%). 

·         When creating a circle graph, we should follow these steps:

o   Determine if the data is “suitable” for a circle graph.  Is there a whole for the data?

o   Calculate Percentages – determine what the whole is by adding all of the parts together.  Then figure out the percents by dividing the part for each category by the whole.

Sneakers Sold for November 1997 at The Shoe Source

o   Draw the Graph – draw a circle and divide the circle into parts.  Use a 100^th disc to help you split the parts accurately

o   Title and Label the Graph – give the graph and appropriate title and label each section with the name and percentage. 

Sneakers Sold at The Shoe Source -

November 1997

Guided Pracice

Mrs. Jones asked her 5^th grade students how many siblings each student in her class has.  The results are below in the table.

1.      Is this data suitable for a circle graph?

2.      Create percentages for the categories above

Studnets use given 100 disc to create a circle graph based on the information from above.