SOL Objective(s):
7.11 The student, given data in a practical situation, will
a) construct and analyze histograms; and
b) compare and contrast histograms with other types of graphs presenting information from the same data set.
a) construct and analyze histograms; and
b) compare and contrast histograms with other types of graphs presenting information from the same data set.
The Basics and Background Information
• All graphs tell a story and include a title and labels that describe the data.
• Comparisons, predictions and inferences are made by examining characteristics of a data set displayed in a variety of graphical representations to draw conclusions.
• The information displayed in different graphs may be examined to determine how data are or are not related, ascertaining differences between characteristics (comparisons), trends that suggest what new data might be like (predictions), and/or “what could happen if” (inference).
• The information displayed in different graphs may be examined to determine how data are or are not related, ascertaining differences between characteristics (comparisons), trends that suggest what new data might be like (predictions), and/or “what could happen if” (inference).
Essential Knowledge and Skills
The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to...
• Collect, analyze, display, and interpret a data set using histograms. For collection and display of raw data, limit the data to 20 items.
• Determine patterns and relationships within data sets (e.g., trends).
• Make inferences, conjectures, and predictions based on analysis of a set of data.
• Compare and contrast histograms with line plots, circle graphs, and stemandleaf plots presenting information from the same data set.
• Collect, analyze, display, and interpret a data set using histograms. For collection and display of raw data, limit the data to 20 items.
• Determine patterns and relationships within data sets (e.g., trends).
• Make inferences, conjectures, and predictions based on analysis of a set of data.
• Compare and contrast histograms with line plots, circle graphs, and stemandleaf plots presenting information from the same data set.
Vocabulary and Things to Know:list of info

Be Able To:list of info

The topic: What is it and what will we learn?
What's the Difference?

HistogramsLesson, model, explanation, and sample problems are demonstrated.


Maths TutorialsPart I: Frequency Table and Histogram
Part II: Frequency Table and Bar Graph Part III: Stacked Bar Graphs and other graphs 

Line Plot, Frequency Table, and HistogramDemonstrates how all three communicate data and how they relate.


Shodor: InteractiveDiscussion that provides explanation and example of difference between Histogram and Bar Graph.
