Bellringer:

1
Bellringer

• Write a hypothesis to answer the following
  question What is the most common eye color?

2
Data DisplayTables and Graphs

• Communicating - Conveying oral or written
  information verbally as well as visually through
  models, tables, charts, and graphs.
• Predicting - Proposing possible results or
  outcomes of future events based on observations
  and inferences drawn from previous events.
• Applying process skills to interpret data from
  graphs, tables, and charts.

3
Tables

• Tables display data in columns and rows to make
  it easier to read and understand.

4
Graphs

• Three types
• - Line graph
• - Bar graph
• - Circle graph

5
Line Graph
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Line Graph

• Shows the relationship between two variables.
• What is a variable?
• Both variables in a line graph must be numbers.
• One variable is shown on the horizontal axis, or
  x-axis, of the graph.
• The other variable is placed along the vertical
  axis, or y-axis.

7
Bar Graph
8
Bar Graph

• A bar graph uses rectangular blocks, or bars, of
  varying sizes to show the relationships among
  variables.
• One variable is divided into parts.
• The second variable must be a number.
• The bars show the size of the second variable.

9
Circle Graph
A circle graph (pie graph) shows the parts
of a whole.
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Some IMPORTANT Characteristics of Tables and/or
Graphs

• A title
• Labeled columns and rows, or axes
• Evenly spaced scales
• Some graphs have keys and/or color-coding.
  (See the circle graph.)

11
Check Your Understanding!

1. Suppose you have two variables, for example, how
   much salt you eat in a day and how much water you
   drink, and you want to visually depict their
   relationship across time. What visual tool might
   you use to show this relationship?
2. When you put numerical data into rows and
   columns, you are creating a _______.

12
Check Your Understanding!

• 3. Suppose you want to visually demonstrate how
  much of a given area is woodland, how much is
  grassy but has no trees, and how much has been
  developed. With different segments like this to
  consider, how might you choose to show the
  relationship of parts to the whole?