Middle school
Probability and Data Reasoning
Probability and Data Reasoning bridges middle and high school statistics for grades 7-9: formal probability rules, two-way tables, distribution shape and center, simulation, and a deep look at sampling and bias. Students finish by building a full evidence-based data argument, from question to presented findings.
Probability Lab
Course journey
Follow the ideas as they grow
8 units, in the order they build on each other. Each unit's question is the thing it exists to answer.
The Statistical Investigation Cycle
What does it take to turn a curiosity into a trustworthy conclusion?
Variables and Data Types
How does the type of a variable determine what you can honestly say about it?
Distribution Shape and Center
How can you formally justify a claim about a distribution's shape and center, instead of just eyeballing it?
Two-Way Tables
How can one table reveal whether two categorical variables are actually related?
Probability Rules
How do you compute the probability of combined or conditional events using precise rules instead of intuition?
Simulation
How do you design a simulation that actually models a real chance situation correctly?
Sampling and Bias
Which formal sampling method fits a given real-world situation, and what specific bias risk remains even with real randomization?
Data Argument Project
What does it take to turn a real question into a data-backed argument you can defend and honestly limit?