On the Download

Think back to the dragonfly activity.

•How fast was the dragonfly?

•Since we know the speed, the distance the dragonfly covers can be found using this equation.

Distance = rate x time

What if our dragonfly raced a bumble bee who could fly 10 feet per second, who

would win?

Poster Problems - On the download Slide #1

An Insect Race

25 ft/sec

10 ft/sec

What if the bumble bee had a head

start? Would that guarantee his win?

Poster Problems - On the download Slide #2

An Insect Race

25 ft/sec

10 ft/sec

Have you ever downloaded a big

file on a smartphone? What did you see? How long did it take?

On the Download - Video

Poster Problems - On the download Slide #3

On the Download

Poster Problems - On the download Slide #4

Our TaskYou begin downloading a movie on your mePhone. Then, your brother starts to

download the same movie 30 seconds later on his mePhone2. Use the given facts to complete

a table showing the amount of data each phone has downloaded. The elapsed time in

the table should indicate when the first phone started downloading.

Elapsed Time (Seconds)

mePhone Data Downloaded (MB)

MePhone2 Data Downloaded (MB

0 0 0

5 10 0

10

15

20

25

30

35

40

45

50

Create an explanation comparing how the data was downloaded by each phone. Your explanation should include words, a table, a graph, and an equation. Use d=rt where d represents downloaded date, r represents rate, and t represents time. Be sure your explanation also answers the following questions:•How long did each phone take to download the file?•Which phone finished first?•Were the two phones ever

tied? How do you know?

Comparing Data Downloads

Poster Problems - On the download Slide #5