Unit 1: DATA & Graphing

Content Standards

NC.4.MD.4 - Represent and interpret data using whole numbers.

Collect data by asking a question that yields numerical data.
Make a representation of data and interpret data in a frequency table, scaled bar graph, and/or line plot.
Determine whether a survey question will yield categorical or numerical data.

Skills/Strategies:

Students will be able to:

Generate data by formulating a question(s)
Determine whether a survey question will yield categorical data or numerical data
- Categorical data represent characteristics such as a person's gender, hometown, or the types of movies they like.
- Numerical data is data that is measurable, such as time, height, weight, amount, and so on.
Collect and represent data (frequency tables, scaled bar graphs, and/or line plots)
Analyze and interpret data given in a table or graph
Apply knowledge of computation skills (within 1,000) when asking and answering questions about the data

Vocabulary

frequency table
line plot
bar graph
scale
categorical data
numerical data
survey
label
title
key
frequency

Line Plots

Line plots are used to represent numerical data. Numerical data is measurable. The data is placed in increasing or decreasing order.

Creating Line Plots

Create a horizontal number line and label it with the whole numbers in counting order.
1. 1. - What’s your scale?
Write a title for your graph that represents your data/
Mark an "X" above the number on the horizontal line every time the data point occurs.
Interpret the data by answering questions.

RESOURCES

Bar Graphs

Bar graphs are used to represent categorical data. Categorical data can be sorted into groups or categories.

Creating Bar Graphs

Organize your data into a table. (tally chart or frequency table)
Use your data to create a scaled bar graph.
Write three statements about your data based on your graph.

Don’t Forget:

Title
Labels
Appropriate Scale
Bars should be the same width and distance apart.

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