Organizing and Representing Data: Visual Representations

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Pictographs use relative sizes or repetitions of the same icon, picture, or symbol to show comparison.

DATA Data is a collection of facts, such as numbers, words, measurements, observations, or even just descriptions of things. Data can be Qualitative or Quantitative

QUANTITATIVE DATA is numerical information. This data involves numbers.

QUALITATIVE DATA is descriptive information. This data describes something.

Examples of Data

Organizing and Representing Data: Visual Representations The Goal of this map is to show students how we can organize data pictorially so their properties are easier to see and interpret. It specifically focuses on how to visually organize and represent data sets using different kinds of graphs and charts. The 5 types of visual representations covered in this map include Dot Plots, Bar Graphs, Line Graphs, Circle/Pie Charts, and Pictographs.

Main topic

CIRCLE/PIE CHARTS A Circle/Pie chart is a circular chart divided into sectors, each sector shows the relative size of each value.

Visual Example of a Circle/Pie Chart

Construction Circle/Pie Charts Students are shown how to construct a circle graph from a set of data. They are also shown how to compute the angle measure for each item in the circle graph. Step-by-step procedures are listed along with large, detailed graphs.

Data & Circle/Pie Charts Students are introduced to the parts of a circle chart and the purpose of each. They are shown how to read and interpret data from a circle graph.

DOT PLOTS Dot Plots use dots to display data.

Dot Plot Example

Dot Plot Video Example

Dot Plot Activity

PICTOGRAPHS A Pictograph is a visual presentation of data using icons, pictures, or symbols in place of common graph elements such as bars, lines, or points.

Learn About Pictographs Video

Mystery Drink Pictograph Lesson Plan In this lesson, student collect, organize, record, and display data in pictographs where each picture might represent more than one piece of data. They will then interpret the information from the pictographs they create.

Additional Example of a Pictograph

LINE GRAPHS A Line Graph shows information that is connected in some way. For example, a change over time.

More Data & Line Graph Examples Students are introduced to the parts of a line graph and the purpose of each. They are shown how to read and interpret data from a line graph.

Line Graph Example

Constructing a Line Graph Students are shown how to construct a line graph from a set of data. Step-by-step procedures are listed along with large, detailed graphs for visual reference.

BAR GRAPHS A Bar Graph uses horizontal or vertical bars to display data in order to display quantities.

Example of a Horizontal Bar Graph

Example of a Vertical Bar Graph

Constructing Bar Graphs Students are shown how to construct a bar graph from a set of data. Step-by-step procedures are listed along with large, detailed bar graphs.

Data & Bar Graph Example Students are introduced to the parts of a bar graph and the purpose of each. They are then shown how to read and interpret data from horizontal and vertical graphs.