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Graphs

How to set up successful graphs in Mrs. Hoyer’s class!

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Target: I can clearly communicate data through the use of a graph.

• Success Criteria:• Choose the appropriate type of graph for the data given.• Include a descriptive title• Place data on correct Axis. • Use data’s range to choose an appropriate scale for each axis. • Choose appropriate intervals based on your scale.• Give each axis an appropriate label (Include units if needed)

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Data Tables and Graphs

• Data tables and graphs are useful tools for both recording and communicating scientific data.

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Data Tables• We use data tables to organize and record

information we gather and measurements we take.

• Soil pH and its effect on plant growth

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Can you name a type of graph?

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Types of Graphs

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When do you use a……

• Line Graph: – To show relationships between variables. – Show change, or trends, over time.– For continuous data

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Circle Graph (Pie Chart)

• Used only when the data can be expressed as percentages of a whole.

• The entire circle equals 100%.

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Bar Graph

• Used to show data that are not continuous

• Allows us to compare data like amounts, frequency, or categories.

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Scatter Plot

A graph of plotted points that show the relationship between two sets of data.

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How to set up your graph!

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How to set up your graph!

Y Axis

(This is for your dependent variable)

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How to set up your graph!

X Axis

(This is for your independent variable)

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0011 0010 1010 1101 0001 0100 1011What things should your graph

include?

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TAILS

TT - Title

Teachers' Favorite Singer

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TAILS

T - T - Title

A - Axis

Teachers' Favorite Singer

Y Axis = Dependent Variable

X Axis = Independent

Variable

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TAILS

T - T - Title

A – Axis

S – Scale

Teacher's Favorite Singer

Decide on an appropriate scale for each axis.

Choose a scale that lets you make the graph as

large as possible for your paper and data

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How to determine scale

• Scale is determined by your highest & lowest number.

• In this case your scale would be from 2 – 22.

Favorite Singer

Number of Teachers

Aerosmith 22

Eagles 15

Madonna 11

Elvis 5

Sinatra 2

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How to determine Intervals

• The interval is decided by your scale.

• In this case your scale would be from 2 – 22 and you want the scale to fit the graph.

• The best interval would be to go by 5’s.

Favorite Singer

Number of Teachers

Aerosmith 22

Eagles 15

Madonna 11

Elvis 5

Sinatra 2

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TAILS

T – TitleT – Title

A – Axis

I – Interval

S – Scale

Teachers' Favorite Singer

The amount of space between one number and the next or one type of data and the next on the graph.

The interval is just as important as the scale

Choose an interval that lets you make the graph as large as possible for your paper and data

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TAILS

T – TitleT – Title

A – Axis

I – Interval

S – Scale

Teachers' Favorite Singer

0

5

10

15

20

25

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TAILST – TitleT – Title

A – Axis

I – Interval

L – Labels

S – Scale

Teachers' Favorite Singer

0

5

10

15

20

25

Aerosm

ith

Eagles

Madonna

Elvis

Sinatra

Singers

Give the bars on the X axis a label. What do

those words represent? (Manipulated Variable)

Num

ber

of T

each

ers

Label your Y Axis. What do those numbers mean? (responding variable)

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Independent Practice• Graph the following data.

• Decide which type of graph to use and why.

• Follow the TAILS format.

Sam's WeightMonth Weight in kgJanuary 49February 54

March 61April 69May 73

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0011 0010 1010 1101 0001 0100 1011Temperatures In NY City

Day Temperature

1 43° F

2 53° F

3 50° F

4 57° F

5 59° F

6 67° F

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