# Today’s Lesson - PowerPoint PPT Presentation

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Today’s Lesson. Today we will learn about a new type of graph. It is called a whisker box. EQ: What are whisker Boxes?. TAKE Some Notes. Box and whisker plots

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Today’s Lesson

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### Today’s Lesson

• Today we will learn about a new type of graph.

• It is called a whisker box

### TAKE Some Notes

• Box and whisker plots

• A box and whisker plot is used to display information about the range, the median and the quartiles. It is usually drawn alongside a number line

### Whisker Box is a type of graph

FIVE POINT SUMMARY More detailed than reporting only median, but less detailed than showing a histogram or stem & leaf diagram, is the FIVE NUMBER SUMMARY

### Example #1:

• Example

• The oldest person in Mathsminster is 90. The youngest person is 15.

• The median age of the residents is 44, the lower quartile is 25, and the upper quartile is 67.

• Represent this information with a box-and-whisker plot.

• Solution

### Class Activity

• You have three post-its

• Write your name on each

• Use one to records your

• Height

• Age in Months

• Shoe Size

### Human Whisker Box Plot!

• Now that we have our data we are going to create a human whisker box.

• Lets use our height data first!

• Line up in order from least to greatest.

• Lets find the Median

• Now separate the Upper and Lower halves of the data

• Let’s find the middle of the lower half.

• This is the lower quartile

• Now we will find the middle of the upper half.

• This is the upper quartile

• 6. Time to identify the upper and lower extremes.

• ### Let’s Try one more time

• Now that we have our data we are going to create a human whisker box.

• Lets use our ages in month next !

• Line up in order from least to greatest.

• Lets find the Median

• Now separate the Upper and Lower halves of the data

• Let’s find the middle of the lower half.

• This is the lower quartile

• Now we will find the middle of the upper half.

• This is the upper quartile

• 6. Time to identify the upper and lower extremes.

• ### Champs For Work Time

• C- Voice Level 1

• H- Do your best thinking. Raise hand for assistance

• A- Use the Shoe size data create a Box and Whisker Plot of the data

• M- You may choose a seat with your partner

• P- Complete the Box and Whisker plot of data. When you are down turn in paper to finished work basket. Complete practice problems in textbook. P. 82

### Champs for Classwork

• C- Voice Level 1 Talk about Math

• A- Complete Study Guide Questions

• M – You may choose a seat

• If you are finished work on Chapter 2 Vocabulary Review

### Math Journal Question

• What did I do today in math?

• What did I learn today in math?

### Math Notebook:

• Classwork/ Current Work Warm Ups