Mathematics
Grade 3: Data Management and Probability 
Planning: Term # Tracking: Ach. Level 

Overall Expectations 
1 
2 
3 
4 
•
collect and organize categorical or discrete primary data and display the
data using charts and graphs, including vertical and horizontal bar graphs,
with labels ordered appropriately along horizontal axes, as needed; 




•
read, describe, and interpret primary data presented in charts and graphs,
including vertical and horizontal bar graphs; 




•
predict and investigate the frequency of a specific outcome in a simple
probability experiment. 




Specific Expectations 




Collection and Organization of Data 




–
demonstrate an ability to organize objects into categories, by sorting and
classifying objects using two or more attributes simultaneously (Sample
problem: Sort a collection of buttons by size, colour, and number of holes.); 




–
collect data by conducting a simple survey about themselves, their
environment, issues in their school or community, or content from another
subject; 




–
collect and organize categorical or discrete primary data and display the
data in charts, tables, and graphs (including vertical and horizontal bar
graphs), with appropriate titles and labels and with labels ordered
appropriately along horizontal axes, as needed, using manytoone
correspondence (e.g., in a pictograph, one car sticker represents 3 cars; on
a bar graph, one square represents 2 students) (Sample problem: Graph data
related to the eye colour of students in the class, using a vertical bar
graph. Why does the scale on the vertical axis include values that are not in
the set of data?). 




Data Relationships 




–
read primary data presented in charts, tables, and graphs (including vertical
and horizontal bar graphs), then describe the data using comparative
language, and describe the shape of the data (e.g., “Most of the data are at
the high end.”; “All of the data values are different.”); 




–
interpret and draw conclusions from data presented in charts, tables, and
graphs; 




–
demonstrate an understanding of mode (e.g., “The mode is the value that shows
up most often on a graph.”), and identify the mode in a set of data. 




Probability 




–
predict the frequency of an outcome in a simple probability experiment or
game (e.g., “I predict that an even number will come up 5 times and an odd
number will come up 5 times when I roll a number cube 10 times.”), then
perform the experiment, and compare the results with the predictions, using
mathematical language; 




–
demonstrate, through investigation, an understanding of fairness in a game
and relate this to the occurrence of equally likely outcomes. 




Student Name: 




Expectations: Copyright The Queen's Printer for Ontario, 2005. Format: Copyright B.Phillips, 1998.