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)