Twenty problems present a variety of practice determining correlation based on data in a scatter plot and using lines of best fit with given data. They are given with each step to the solution cleverly revealed one at a time. You can...

Order of operations with positive and negative numbers is the focus of this graphing calculator lesson. Included are detailed examples, demonstrations of key functions, and practice problems. Acrobat Reader required.

Dozens of statistical terms are defined and illustrated in this glossary.

Get independent practice working with scatter plots. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

Using the story Less than Zero by Stuart Murphy, learners relate money matters to positive and negative numbers as a real-life correlation. Incorporated into this instructional activity, students play the path to positive game where they...