WEEK 2(16 -19 SEPTEMBER 2013)

Unit 1 Data and Technology

I can:

represent the mean of a set of numbers using cubes/stacks

explain the mathematical difference between mean, median, and mode using stacks of cubes or a histogram.

predict what will happen to the mean or median when adding data to a data set

explain the mathematical difference between mean and median and represent both using a line plot

create data sets that have specific characteristics

use the graphing calculator to compute mean and median for a data set.

Day 1 and 2: Objectives

Entry Task: 9/16/2013

Entry task 6 4 9 1

What is the mean of the set? How did you find it?

Cube stacking

Homework questions…

Worksheet: Mean and median on the number line

Mean and Median on the Number Line student worksheet.docx

Home work:

Worksheet: Modeling Data 8.1

Topic: Measures of Central Tendency

Exit task: 9/16/2013 Entry task 6 4 9 1

What is the mean of the set? How did you find it?

Exit Task Describe at least one other way to find the mean of the above set. How would the mean be affected if a 5th stack 3 “pancakes” is added to the original set. Explain your reasoning.

Weighted Averages

Test Scores

I can:

create a box and whiskers plot given a data set

answer questions about a situation using a box and whiskers plot

compare box and whiskers plots and draw statistical conclusions

use the graphing calculator to make a box and whiskers plot

Day 3 and 4: Objectives

Entry Task: Quiz 1 Mean

Questions homework: Measures of Central Tendency….

Upper Quartile (Q3)

Lower Quartile (Q1)

Median (Q2)

What can you learn from a Box and Whisker Plot?

Creating Box and Whisker Plots

I can:

create a box and whiskers plot given a data set

answer questions about a situation using a box and whiskers plot

compare box and whiskers plots and draw statistical conclusions

use the graphing calculator to make a box and whiskers plot

Day 4: Objectives

Brad and Tom are comparing their classes' scores on a math test. Both of their classes had mean scores of 80 on the test, but Brad's class had a range of 6 while Tom's class had a range of 30. If the highest possible score was 100, which class had the LOWEST score in it?

Which Statement would be true? Brad's class had the lowest score in it. Tom's class had the lowest score in it. The lowest score occurred in both classes. It cannot be determined from the information.

How do you know you are right?

Median (Q2)- The “middle” of the data

Upper Quartile (Q3)- The “middle” of the upper half of the data

Lower Quartile (Q1)-The “middle” of the lower half of the data

What can you learn from a Box and Whisker Plot?

Creating Box and Whisker Plots

:

Comparing graphs of data (worksheet)

Texting by the numbers Part I

Texting by the Numbers Part 2

Homework: