# Grade 3 Module 5 Terminology

• Terminology

New or Recently Introduced Terms

? Unit fraction (fractions with numerator 1)

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

? Fractional unit (half, third, fourth, etc.)

? Equal parts (parts with equal measurements)

? Unit interval (the interval from 0 to 1, measured by length)

? Equivalent fraction (2 fractions that name the same size)

? Copies (refers to the number of unit fractions in 1 whole)

Familiar Terms and Symbols

? Number line

? Arrays

? Halves, thirds, fourths, sixths, eighths (1/2, 1/3, 1/4, 1/6, 1/8)

? Half of, one third of, one fourth of, etc. (1/2, 1/3, 1/4, 1/6, 1/8)

? =, <, > (equal, less than, greater than)

? Equal shares (pieces of a whole that are the same size)

? Whole (e.g., 2 halves, 3 thirds, etc.)

? Fraction (e.g., 1/3, 2/3, 3/3, 4/3)

? Partition (divide a whole into equal parts)

Suggested Tools and Representations

? Number line

? Tape diagram

? Arrays

? Concrete area models (e.g., water, string, clay)

? Pictorial area model (e.g., drawing of a circle or square)

? Fraction strips (made from paper, used to fold and model parts of a whole)