playing cards and candles on a wooden table

Introducing the Chi-Square Test Through Inquiry

Adapted from a creative statistics lesson taught by master science educator Mark Krotec, this pre-lab investigation introduces the value of statistics, the inherent qualities of uncertainty, and data interpretation. Students are asked to discredit the claim that their teacher possesses psychic ability by using a clever card trick, a careful experimental design protocol, and the application of the chi-square test.


What Is a Light Year?

Understanding Unfamiliar Units This activity gets students out of their desks to practice measuring and manipulating units in a fun, […]

graphs and charts

The Basics of Graphs and Charts

Help your students brush up on their graphing skills with this quick review. Graphs and charts communicate information visually. They […]


Very Trendy: Analyzing Data

Students often struggle with how to analyze and present the data they obtain in an experiment. While many schools offer […]