Tag Archives: ratios

Remarks on the History of Ratios

What was the definition of ratio used 2400 years ago? Jim Madden expounds on the different definitions of ratio used throughout the centuries. Continue reading

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Ratios, ordered pairs versus points, proportional relationships, and proportions

What are ratios, proportional relationships, and proportions according to the CCSS-M progressions documents, and what is the difference between a point and an ordered pair? Continue reading

Posted in Engineering School Mathematics | Tagged , , , , , , , , , , , , , | 14 Comments

The Mardi Gras Problem

At a recent family-friendly Mardi Gras parade, Autumn and I wondered: How many beads does a float rider need to buy for a Mardi Gras parade? Continue reading

Posted in Growing Up With Eureka | Tagged , , , , , , , , , , , , , , | 1 Comment