Significant Figures in Measurements

Mr. Key outlines how we use numbers in science, with specific regards to precision and significance.

Please note that all questions, comments and critiques are welcome. However, because the primary purpose of these videos is educational for students/educators, the comments are moderated. Any comments that are deemed abusive, inappropriate, or unrelated to the topic matter will not be posted and the user potentially blocked.


Test Your Knowledge With Our Pi Day Quiz – World Science Festival

Saturday, March 14 was the unofficial math holiday known as Pi Day. Celebrated throughout geekdom, Pi Day is so crowned because the first three digits of pi (3, 1, 4) are like the numeric representation for March 14 (3/14). This year it’s even  more special because it will be 3/14/15, as in the first five digits of pi (3.1415). Maybe you knew all that. But what else do you know?

Before pi, there was this simple Latin phrase to express what pi represents: “Quantitas in quam cum multiflicetur diameter, proveniet circumferencia.” OK, not as simple as pi, sure. But don’t worry—no knowledge of Latin is needed for our fun, little quiz.

Still, while it may not be easy as pie (or pi?), our quiz will definitely test your knowledge of pi and culture—and it’s way less caloric than those round things with those deliciously buttery crusts.

By: Erica Rowell

Quiz: 10 Trivia Questions About Pi

Feeling smart? Like trivia? Love pi? Let’s go.

Go the to the WSF link below to try the quiz.

via Test Your Knowledge With Our Pi Day Quiz – World Science Festival.

Infographic: Big Numbers Count – World Science Festival

Even if you’re not a mathematician trading daily in numbers of all manner, you deal with them regularly. Ever since humans have had to send ships, trade goods, track natural events, they’ve played an important role in a variety of activities.

Continue reading