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
§ 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)
§ Mixed number (number made up of a whole number and a fraction)
§ Numerator (e.g., the 3 in indicates 3 fractional units are selected)
Familiar Terms and Symbols
§ =, <, > (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!
Terminology
New or Recently Introduced Terms
§ 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)
§ Mixed number (number made up of a whole number and a fraction)
§ Numerator (e.g., the 3 in indicates 3 fractional units are selected)
Familiar Terms and Symbols
§ =, <, > (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!