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Jun 273:40 PM
Math 6/7 - Unit 1Day 4 - Categorical Graphs
(pg 30 in INB)Lesson Objectives:• I can display data using
categorical graphs such as
picture graphs, dot plots, bar graphs, double bar graphs, and
circle graphs.
Nov 193:34 PM
A picture graph uses pictures or symbols to show data. One
picture often stands for more than one vote so a key is necessary
to understand the symbols.
http://www.icoachmath.com//image_md/Dot%20plot2.jpg
http://studyzone.org/testprep/math4/e/readpi12.gif
A dot plot is a type of graph used to compare data within
categories or groups. A dot plot is made up of dots plotted on a
graph. Clusters (data that's grouped closely together) and gaps in
information are easy to see on a dot plot.
*Dot plots may work with categorical and numerical
questions.*
Jun 263:09 PM
A bar graph uses bars to show data. The bars can be vertical or
horizontal. The data can be in words or numbers. The bars in a bar
graph DO NOT TOUCH!!!
A double bar graph compares two sets of data at the same
time.
http://getwordwall.com/Attachments/Screenshots/Play/bargraph.png
http://www.eduplace.com/math/mw/background/5/06a/graphics/ts_5_6a_int4.gif
Jun 263:21 PM
A circle graph displays data as sections of a circle. The sum of
the angle measures in a circle graph is 360o .
http://www.npr.org/blogs/thesalt/2014/04/08/300620654/thispiechartisdeliciousandstatisticallysound?utm_medium=Email&utm_source=npr_email_a_friend&utm_campaign=storyshare
http://www.webquest.hawaii.edu/kahihi/mathdictionary/images/Pepperoni.png
Jun 263:43 PM
Type of Display Best Used For Type of Display Best Used For
Picture Graph
Show the number of items in specific categories by pictures.
Line Plot/Dot PlotShow frequency of data with a number line
Bar GraphShow the number of items in specific categories
Double Bar Graph Compare two sets of categorical data
Circle Graph (Pie Chart)
Compare part of the data to the whole; useful for percents
Jun 263:49 PM
The graphs below display the total number of pounds of plastic
recycled each week during a ten-week period in different ways.
a. b.
1. What type of graph is graph a?
2. What type of graph is graph b?
3. Which display more easily shows the number of weeks the class
collected between 30 and 39 pounds of plastic?
4. Which display more easily shows the percent of time that 40
to 49 pounds of plastic was recycled?
http://www.npr.org/blogs/thesalt/2014/04/08/300620654/this-pie-chart-is-delicious-and-statistically-sound?utm_medium=Email&utm_source=npr_email_a_friend&utm_campaign=storyshare
2
Sep 108:53 PM
Test QuestionsAt the beginning of this unit's notes, write 2
questions that could show up on the unit test. You do NOT need to
solve the questions.
You will add to this list throughout the entire unit.
Jul 810:14 AM
HomeworkCategorical Graphs WKS
* Individual Think Time *
What to do if you get stuck...1. Reread the problem. Did you
write it
down correctly?2. Reread your notes. Is there a problem
similar that we did together in class?3. Find a problem similar
in your book. Try
this one to see if it helps.4. Skip the problem until the end
of
Individual Think Time. Then ask an "educated" question of a
neighbor or Mrs. Call.
Today we're working by...
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