Choose a graph
A graph should match the kind of data and the question.
Explore the lesson →
Data literacy · Grades 5–8Find the story a set of numbers can support.
Learn through clear explanations, worked examples, and activities that ask you to think. Start with a lesson, try the task, then explain what you learned.
Start learning Free · No student accountsA three-lesson learning path
Mean and median
The mean is the sum divided by the number of observations.
Explore the lesson →Samples and uncertainty
A sample is a subset of a population.
Explore the lesson →Use what you learn
Each lesson includes a central idea, an example, an activity, and a question with an explained answer. Keep a notebook of your reasoning. Use the practice page to identify ideas worth revisiting.
Check your understanding →Teach with flexibility
Use these resources for a short classroom discussion, independent practice, or a small-group activity. Adjust reading support and task difficulty to your learners. Activities can be printed using your browser.
Read the teaching guide →Tell a careful data story
Use a small, non-sensitive dataset to create a labeled display and a conclusion with appropriate limits.
Open the guided project