Understanding Picture Graphs and Keys

The video tutorial teaches how to determine an appropriate key for a picture graph by analyzing data. It explains the components of a picture graph, including pictures, titles, category labels, and keys. The tutorial addresses common misunderstandings, such as the belief that one picture can only represent one item. Through examples, it demonstrates how to create picture graphs for chairs and books, emphasizing the importance of choosing suitable benchmark numbers and using half pictures when necessary. The lesson concludes with a summary of the key points covered.

What is the primary purpose of a picture graph?

• To write detailed reports

• To calculate mathematical equations

• To visually represent collected data

• To create artistic designs

Why is it important to use a key in a picture graph?

• To confuse the reader

• To make the graph look more complex

• To indicate the number of items each picture represents

• To add color to the graph

What is a common misunderstanding about picture graphs?

• That they can only represent small numbers

• That one picture can only represent one item

• That they are only used in art classes

• That they are difficult to create

Which benchmark number was found to be too large for the chair example?

• Three

• Five

• Two

• Four

How can half pictures be used in a picture graph?

• To add artistic value

• To represent half the number on the key

• To make the graph more colorful

• To confuse the reader

What was the final key used for the chair example?

• One picture represents two chairs

• One picture represents three chairs

• One picture represents four chairs

• One picture represents five chairs

Why was the benchmark number of ten chosen for the book example?

• Because it was the smallest number

• Because it matched all data points

• Because it was a common benchmark

• Because it was the largest number

How many books did Miss Spring's class read?

• 30

• 40

• 65

• 50

What does a half picture of a book represent in the book example?

• Fifteen books

• Five books

• Two books

• Ten books

What is the key takeaway from the lesson on picture graphs?

• Always use one picture per item

• Only use picture graphs for small data sets

• Avoid using keys in graphs

• Use benchmark numbers to simplify representation