Data and statistics: a learning progression
Move from reading simple displays to summarizing distributions and interpreting relationships in data.
Before you begin
Count, compare quantities, and read labeled scales.
Readiness depends on the ideas you can use, not only your age or grade. Start earlier in the sequence when an example feels unfamiliar.
How the skill develops
- Organize counts with tallies, pictures, and bar graphs.
- Choose appropriate measures of center and spread.
- Read distributions and relationships using plots and two-way tables.
- Consider sampling, variability, and what a graph can and cannot establish.
What grade is this taught?
Our catalog includes this progression from grade 2 through grade 9. That is a map of the practice available here, not a rule that every school uses the same schedule. Earlier grades may introduce models that later grades formalize.
The sequence is our teaching organization, informed by the published curriculum reference. High-school courses and calculus enrollment vary; check your school’s syllabus for placement decisions.
Build your next practice steps
Mark skills you already feel comfortable with. We’ll suggest the next unchecked skills in this sequence. This is a self-selected path, not a test score.