Choosing Appropriate Scales for Graphs Using Estimation

This lesson teaches how to select appropriate scales for graphs using estimation. It highlights the importance of choosing the right scale to make graphs visually appealing and easy to understand. The lesson covers common mistakes in graph scaling, such as misleading representations, and provides examples like Josh's allowance graph and John's temperature graph to illustrate proper scaling techniques. Key factors like data range and grid lines are emphasized to aid in selecting the right scale.

Why is it important to select an appropriate scale for a graph?

• To make the graph look colorful

• To ensure the graph is easy to understand

• To make the graph more complex

• To increase the number of data points

What was the range of allowances Josh considered for his bar graph?

• $2

• $5

• $10

• $8

How did Josh decide to label the vertical axis on his graph?

• By labeling every $5

• By labeling every $2

• By labeling every $0.50

• By labeling every $1

What was the time interval Haley used for the horizontal axis in the temperature graph?

• 4 hours

• 1 hour

• 2 hours

• 3 hours

How did Haley ensure the temperature graph was easy to read?

• By adding more data points

• By using a 3D graph

• By connecting the data points

• By using bright colors