Articles by Paul Katula

What is a stem-and-leaf plot?

This post is directed at content developers, elementary math. I would like you to develop a Voxitatis tutorial on this topic to help parents explain…


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What is a fraction?

Update, 12 Nov 2012: Do you want to explore fractions rather than just read about them? We have developed interactive tools that allow students to…


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Suggestion Box

This is a suggestion box for how we might make this Web site better. We focus what we do on service to our schools, students,…