After the Thanksgiving break, we will begin the math unit on fractions. This is a very big and important unit for 4th graders. Below are some vocabulary terms that we will use throughout the unit.

Terminology

New or Recently Introduced Terms

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Familiar Terms and Symbols

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I will post more information as we cover the topics in the unit!

Terminology

New or Recently Introduced Terms

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**Benchmark**(standard or reference point by which something is measured)§

**Common denominator**(when two or more fractions have the same denominator)§

**Denominator**(e.g., the 5 in names the fractional unit as fifths)§

**Fraction greater than 1**(a fraction with a numerator that is greater than the denominator)§

**Line plot**(display of data on a number line, using an x or another mark to show frequency)**(number made up of a whole number and a fraction)**

§ Mixed number§ Mixed number

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**Numerator**(e.g., the 3 in indicates 3 fractional units are selected)Familiar Terms and Symbols

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**=, <, >**(equal to, less than, greater than)§

**Compose**(change a smaller unit for an equivalent of a larger unit, e.g., 2 fourths = 1 half, 10 ones = 1 ten; combining 2 or more numbers, e.g., 1 fourth + 1 fourth = 2 fourths, 2 + 2 + 1 = 5)§

**Decompose**(change a larger unit for an equivalent of a smaller unit, e.g., 1 half = 2 fourths, 1 ten = 10 ones; partition a number into 2 or more parts, e.g., 2 fourths = 1 fourth + 1 fourth, 5 = 2 + 2 + 1)§

**Equivalent fractions**(fractions that name the same size or amount)§

**Fraction**(e.g. 1/2, 3/4)§

**Fractional unit**(e.g., half, third, fourth)§

**Multiple**(product of a given number and any other whole number)§

**Non-unit fraction**(fractions with numerators other than 1)§

**Unit fraction**(fractions with numerator 1)§

**Unit interval**(e.g., the interval from 0 to 1, measured by length)I will post more information as we cover the topics in the unit!