Circle Graphs

We learned all about circle graphs last week. We reviewed them again on Monday. Here are the big ideas that were covered: 

• unless you know how many people were surveyed, it is very hard to provide specific numbers when interpreting the data on a (grade three) circle graph 
• we reviewed fractions by talking about 1/2 and 1/4 
• for the most part, circle graphs rely on percentages, something the boys and girls will learn in later years
• when given the option of interpreting data from both a bar graph or a circle graph, a bar graph will be more accurate (at this grade level)
• Don't get fooled!  If a test question asks you "How many kids voted for chocolate chip?" and you don't know how many people participated in the survey, it's impossible to provide specific numbers. 
• We rely on fractions such as 1/4 or 1/2 or even phrases such as "a very small amount" or "the least amount".