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Number of Gas Stations in the U.S., 1995

The Question: Could you tell me how many gas stations there are currently in the United States? The Answer: According to the U.S. Census Bureau, as of 2002 (the…

Number of Cadaveric U.S. Organ Donors

The following table lists the number of cadaveric organ donors in the United States each year from 1987 to the present. There were 7,102 donors in 2014. (as of Jan.…

Determining Rational, Irrational, and Real Numbers

Use this video to show students the difference between rational and irrational numbers, integers, whole, and natural numbers.

Divide Whole Numbers by Unit Fractions

In this video, Emily learns how to divide a whole number by a fraction.

Equivalent Fractions: Use the Number Line

In this video, Carlos learns how to use a number line to compare the value of fractions.

Estimate Sums and Differences of Mixed Numbers

In this video, Carlos learns how to estimate values for addition and subtraction involving mixed numbers.

Estimate the Product of a Decimal and a Whole Number

In this video, Jada learns how to estimate the product of a whole number and a fraction.

Finding the Product of Two Mixed Numbers

This video teaches students to multiply two mixed numbers by changing them to improper fractions, then how to multiply and simplify.

Models to Subtract 2-Digit Numbers

In this video, Marta learns various ways to subtract 2-digit numbers from 2-digit numbers, including regrouping and marking out.

Number Line: Fractions Less Than 1

In this video, Carlos learns how to use a number line to determine the value of fractions.