what’s your favorite?
Post on 22-Feb-2016
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WHAT’S YOUR FAVORITE?Interpreting & Creating data displays
INTRODUCTION TO STATISTICS• Students should have a basic understanding of statistics: collecting,
organizing and displaying data on line plots and bar graphs.• You may want to teach/review mean, median and mode as this is not
covered; however, my advanced classes have usually seen it.• Begin with the Enter ticket to check prior knowledge.• With those results you can guide the class discussion and clarify
misconceptions.• The next slide includes sample graphs to show and use for discussion…
these vary from hand made to interactive and fun to watch!
ARE THESE DATA DISPLAYS?Name of graph? Name of graph?
http://lucivps.securesites.net/surber/graphics0607/SportBarGraph.jpg http://upload.wikimedia.org/wikipedia/commons/e/e1/A_line_graph_showing_the_of_population_for_Thoralby.jpg
NOW WE WILL DISCUSS THREE NEW GRAPHS AND DISPLAYS
THAT YOU WILL CREATE!
DOT PLOTENTER TICKET SCORES
Test scores out of 100
Dot Plot 4- Excellent representation, accurate, no mistakes
3- Good representation, mostly accurate, 2-3 mistakes
2- Fair representation, 4-5 mistakes, needs some improvement
1- Poor representation, 6+ mistakes, needs to be redone
Correct graph Accurate titles & labels 22 data points accurately represented
Number line is correct and appropriate increments
The vertical increments/spacing is appropriate to show the correct shape of the plot
Total Points: Total Overall Points: Overall Grade:
DOT PLOT RUBRIC:*Sample Scoring: A is 14.4+ points; B is 12.8-14.3 points; C is 11.2-12.7 points; D is 9.6-11.1 points; F is 9.5 and below. (Please adjust scoring as preferred.)
BOX PLOTENTER TICKET SCORES
Test scores out of 100
MIN MEDIAN MAXQ1 Q3
BOX PLOT RUBRIC:*Sample Scoring: A is 14.4+ points; B is 12.8-14.3 points; C is 11.2-12.7 points; D is 9.6-11.1 points; F is 9.5 and below. (Please adjust scoring as preferred.)
Box Plot 4- Excellent representation, accurate, no mistakes
3- Good representation, mostly accurate, 2-3 mistakes
2- Fair representation, 4-5 mistakes, needs some improvement
1- Poor representation, 6+ mistakes, needs to be redone
Correct graph Accurate titles & labels Data accurately represented
Number line is correct and appropriate increments
The quartile increments/spacing is appropriate to show the correct shape box
Total Points: Total Overall Points: Overall Grade:
HISTOGRAMENTER TICKET SCORES
Test scores out of 100
Num
ber o
f Stu
dent
s
Histogram 4- Excellent representation, accurate, no mistakes
3- Good representation, mostly accurate, 2-3 mistakes
2- Fair representation, 4-5 mistakes, needs some improvement
1- Poor representation, 6+ mistakes, needs to be redone
Correct graph Accurate titles & labels Data accurately represented
Number line is correct using appropriate intervals
The vertical spacing is appropriate
Total Points: Total Overall Points: Overall Grade:
Histogram RUBRIC:*Sample Scoring: A is 14.4+ points; B is 12.8-14.3 points; C is 11.2-12.7 points; D is 9.6-11.1 points; F is 9.5 and below. (Please adjust scoring as preferred.)
• Now show on the board the enter ticket grade data and have students copy the data down.
• Let them begin to organize the data and work on their graphs.• This is where students are either working with graph paper, rulers and
maybe markers to create their graphs or you can have students working with excel or geogebra to create… if available and you are comfortable with this technology.
• Walk around facilitating discussions to be sure that students are adding all appropriate information and understand the data they are displaying.
• The next part would be to turn in graphs and take the exit ticket.• A continuing point if time allows might be to compare the two sets of
scores.
Enter ticket scores
1 912 823 734 735 736 647 648 559 5510 4611 3712 4613 4614 4615 4616 7317 5518 5519 6420 6421 7322 73
Mean 61.54545Median 64Mode 73
SAMPLE DATA USED FOR SAMPLE
GRAPHS, INCLUDING CALCULATIONS:
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