VampiresVampiresCould they eliminate humans?Could they eliminate humans?

Stacey BritnerStacey Britner

EDUC 570EDUC 570

3-14-073-14-07

Can you think of vampires from Can you think of vampires from movies?movies?

Do you think vampires exist?Do you think vampires exist?

Do you think vampires Do you think vampires really exist?really exist?

How do vampires How do vampires survive?survive?

Can humans and Can humans and vampires exist at the vampires exist at the same time?same time?

Here are some questions Here are some questions I have…I have…

If it’s possible, I wonder…If it’s possible, I wonder… How long it would take vampires to take How long it would take vampires to take

over this school?over this school?

• How long before they would take over your town?• How long it would take for vampires to take over the USA?

Your MissionYour Mission Your mission...should you choose to accept Your mission...should you choose to accept

it…is to use Excel to find out how long it it…is to use Excel to find out how long it would take for vampires to take over this would take for vampires to take over this school, this town, and the USA.school, this town, and the USA.

You may work individually or in partners of You may work individually or in partners of no more than 2.no more than 2.

If you need help, ask a neighbor or the If you need help, ask a neighbor or the teacher.teacher.

The DetailsThe Details

The first day, day 0, you’ll start with 1 vampire and The first day, day 0, you’ll start with 1 vampire and no one bitten.no one bitten.

Each day after that each vampire will bite 1 person.Each day after that each vampire will bite 1 person. Use Excel to find out the answers to the three Use Excel to find out the answers to the three

questions:questions: How long will it take them to take over the school?How long will it take them to take over the school? The town?The town? The USA?The USA?

The SetupThe Setup

When you open Excel, When you open Excel, start a spreadsheet.start a spreadsheet.

Make sure you save it Make sure you save it under “vampire”.under “vampire”.

You’ll start

with a spreadsheet

that looks like

this

Day Number of Vampires Number of People Bitten Total Vampires0 1 0 112345

• I have started the first line.• Follow the pattern to complete the chart.

Any short cuts?Any short cuts?

Are there any short cuts Are there any short cuts you can use in Excel to you can use in Excel to complete the chart complete the chart faster?faster?

Review your notes and Review your notes and talk with your talk with your neighbors.neighbors.

What does it look like?What does it look like?

Graph your chart from day zero until the day Graph your chart from day zero until the day vampires have taken over the school.vampires have taken over the school.

What do you see?What do you see? Can you describe what kind of slope that is?Can you describe what kind of slope that is? Why does it look like this?Why does it look like this? Answer these questions and turn in your paper, Answer these questions and turn in your paper,

with the graphs, at the end of class.with the graphs, at the end of class. If you’re working in a group of 2, one sheet with If you’re working in a group of 2, one sheet with

both names written at the top is acceptable.both names written at the top is acceptable.

HomeworkHomework

What do you think the graph would look like What do you think the graph would look like for the day vampires have taken over the for the day vampires have taken over the town? The USA?town? The USA?

Hand in a graph for each day.Hand in a graph for each day. Do they look similar? Explain why or why not Do they look similar? Explain why or why not

on a separate sheet of paper that you will hand on a separate sheet of paper that you will hand in with your graphs for our next class.in with your graphs for our next class.