Strand Overviews
Data – Intermediate Division
OVERALL EXPECTATION D1.
manage, analyse, and use data to make convincing arguments and informed decisions, in various contexts drawn from real life
| Grade 6 | Grade 7 | Grade 8 |
|---|---|---|
| Data Collection and Organization | title |
title |
| D1.1 describe the difference between discrete and continuous data, and provide examples of each | D1.1 explain why percentages are used to represent the distribution of a variable for a population or sample in large sets of data, and provide examples | D1.1 identify situations involving one-variable data and situations involving two-variable data, and explain when each type of data is needed |
| D1.2 collect qualitative data and discrete and continuous quantitative data to answer questions of interest about a population, and organize the sets of data as appropriate, including using intervals | D1.2 collect qualitative data and discrete and continuous quantitative data to answer questions of interest, and organize the sets of data as appropriate, including using percentages | D1.2 collect continuous data to answer questions of interest involving two variables, and organize the data sets as appropriate in a table of values |
| Data Visualization | title |
title |
| D1.3 select from among a variety of graphs, including histograms and broken-line graphs, the type of graph best suited to represent various sets of data; display the data in the graphs with proper sources, titles, and labels, and appropriate scales; and justify their choice of graphs | D1.3 select from among a variety of graphs, including circle graphs, the type of graph best suited to represent various sets of data; display the data in the graphs with proper sources, titles, and labels, and appropriate scales; and justify their choice of graphs | D1.3 select from among a variety of graphs, including scatter plots, the type of graph best suited to represent various sets of data; display the data in the graphs with proper sources, titles, and labels, and appropriate scales; and justify their choice of graphs |
| D1.4 create an infographic about a data set, representing the data in appropriate ways, including in tables, histograms, and broken-line graphs, and incorporating any other relevant information that helps to tell a story about the data | D1.4 create an infographic about a data set, representing the data in appropriate ways, including in tables and circle graphs, and incorporating any other relevant information that helps to tell a story about the data | D1.4 create an infographic about a data set, representing the data in appropriate ways, including in tables and scatter plots, and incorporating any other relevant information that helps to tell a story about the data |
| Data Analysis | title |
title |
| D1.5 determine the range as a measure of spread and the measures of central tendency for various data sets, and use this information to compare two or more data sets | D1.5 determine the impact of adding or removing data from a data set on a measure of central tendency, and describe how these changes alter the shape and distribution of the data | D1.5 use mathematical language, including the terms “strong”, “weak”, “none”, “positive”, and “negative”, to describe the relationship between two variables for various data sets with and without outliers |
| D1.6 analyse different sets of data presented in various ways, including in histograms and broken-line graphs and in misleading graphs, by asking and answering questions about the data, challenging preconceived notions, and drawing conclusions, then make convincing arguments and informed decisions | D1.6 analyse different sets of data presented in various ways, including in circle graphs and in misleading graphs, by asking and answering questions about the data, challenging preconceived notions, and drawing conclusions, then make convincing arguments and informed decisions | D1.6 analyse different sets of data presented in various ways, including in scatter plots and in misleading graphs, by asking and answering questions about the data, challenging preconceived notions, and drawing conclusions, then make convincing arguments and informed decisions |
OVERALL EXPECTATION D2.
describe the likelihood that events will happen, and use that information to make predictions
| Grade 6 | Grade 7 | Grade 8 |
|---|---|---|
| Probability | title |
title |
| D2.1 use fractions, decimals, and percents to express the probability of events happening, represent this probability on a probability line, and use it to make predictions and informed decisions | D2.1 describe the difference between independent and dependent events, and explain how their probabilities differ, providing examples | D2.1 solve various problems that involve probability, using appropriate tools and strategies, including Venn and tree diagrams |
| D2.2 determine and compare the theoretical and experimental probabilities of two independent events happening | D2.2 determine and compare the theoretical and experimental probabilities of two independent events happening and of two dependent events happening | D2.2 determine and compare the theoretical and experimental probabilities of multiple independent events happening and of multiple dependent events happening |