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Real World Math: Rational Numbers

3 minutes 19 seconds

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The video "Real World Math: Rational Numbers" explores the concept of rational numbers through real-world examples, such as batting averages in baseball, pizza slices, and race car speeds. A rational number is defined as a number that can be expressed as a fraction a/b, where both a and b are integers and b is not zero. The video highlights the representation of integers and decimals as rational numbers and distinguishes them from irrational numbers like pi, which cannot be precisely expressed as a fraction. Part of the "Real World Math" series.

Media Details

Runtime: 3 minutes 19 seconds

Topic: Language Arts, Mathematics
Subtopic: Algebra, Critical Thinking, Mathematics, Statistics
Grade/Interest Level: 5 - 8
Standards:

Release Year: 2016
Producer/Distributor: Mazzarella Media
Series: Real World Math
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Closeup of an open green eye with a purple colored contact lens, black mascara on the eyelashes, and black eyeliner on the top lid. Caption. With several special properties.

Centered, front view of the Taj Mahal. A dashed white line is overlaid down the center, with an arrow and the word "Axis" overlaid and pointing to it. A white rectangle overlay is around one of the pillars on the left. Caption. 1 side is a reflection of the other side.

Top side view of a pizza with cheese, red sauce, and Canadian bacon on a large stainless steel pizza spatula over a gray background. Caption. Most likely, family or friends ate the rest of the pizza.

Several ocean going sailboats docked with sails down is in front of a street lined with multi-story buildings with many windows and pitched roofs. Caption. The city of Copenhagen in Denmark is at sea level.

Top side view of a pizza with cheese, red sauce, and Canadian bacon on a large stainless steel pizza spatula over a gray background.

White background with faint gray gridlines and math equation that reads, "23 and seven eighths equals 23.875." A big red arrow points at and labels the decimal point. Caption. Fractional quantities, such as 23 or seven eighths.