Data & Statistics

18 Skills in Mathematics. 18 are ready to try — three verified questions each, no account needed.

Ready to try

Ages 5–6
Sorting into categories
Classify objects into given categories, count the number in each category, and sort the categories by count
71 verified questions on this shelf
Ages 6–8
Pictograms and tally charts
Interpret and construct simple pictograms, tally charts, block diagrams, and simple tables
73 verified questions on this shelf
Ages 6–9
Pictograms and tally charts (age 6+)
Read, write, and use the vocabulary of data collection and display — data, tally, tally chart, frequency, frequency table, survey, pictogram, bar chart, axis/axes, scale, label, category, discrete data, continuous data, line graph, pie cha…
10 verified questions on this shelf
Ages 6–8
Sorting Data into Categories
Organise and represent data with up to three categories by counting objects in each category and sorting categories by quantity
40 verified questions on this shelf
Ages 6–8
Sorting into categories (age 6+)
Interpret categorical data by asking and answering questions about totals, how many in each category, and how many more or less one category has than another
15 verified questions on this shelf
Ages 7–8
Picture & Bar Graphs
Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories; solve put-together, take-apart, and compare problems using information presented in a bar graph
20 verified questions on this shelf
Ages 8–9
Bar graphs
Interpret and present discrete and continuous data using appropriate graphical methods, including bar charts and time graphs
10 verified questions on this shelf
Ages 8–9
Representing numbers with objects (age 8+)
Draw a scaled picture graph and a scaled bar graph to represent a data set; solve one- and two-step comparison, sum, and difference problems using bar charts, pictograms, and tables
15 verified questions on this shelf
Ages 9–10
Reading and Comparing Bar Graphs
Solve comparison, sum, and difference problems using information presented in a bar graph
8 verified questions on this shelf
Ages 9–10
Reading tables
Complete, read, and interpret information in tables, including timetables
10 verified questions on this shelf
Ages 9–11
Statistical Analysis Vocabulary
Read, write, and use the vocabulary of statistical analysis — mean, median, mode, range, frequency, data, sample, average, chart, table, graph, pie chart, scatter graph, correlation — with understanding of what each term describes
14 verified questions on this shelf
Ages 10–11
Calculating the Mean
Calculate and interpret the mean as an average of a data set
20 verified questions on this shelf
Ages 10–11
Line graphs (age 10+)
Interpret and construct pie charts and line graphs; use these to solve problems
10 verified questions on this shelf
Ages 10–11
Understanding fractions
Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8); use operations on fractions to solve problems involving data in line plots (e.g. redistribute total equally)
10 verified questions on this shelf
Ages 11–13
Comparing measurements
Describe, interpret, and compare distributions of a single variable using appropriate measures of central tendency (mean, median, mode) and spread (range), including the effect of outliers
13 verified questions on this shelf
Ages 11–13
Pictograms and tally charts (age 11+)
Construct and interpret frequency tables, bar charts, pie charts, pictograms, and vertical line charts for both categorical and grouped numerical data, choosing appropriate representations for the data type
13 verified questions on this shelf
Ages 13–14
Scatter Graphs
Plot bivariate data on a scatter graph with correctly labelled axes and appropriate scales; describe the correlation (positive, negative, none) and draw an estimated line of best fit where appropriate
36 verified questions on this shelf
Ages 13–14
Scatter Graphs & Correlation
Describe simple mathematical relationships between two variables using scatter graphs, identify positive, negative, or no correlation, and use a line of best fit to make predictions
56 verified questions on this shelf

Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.