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4th grade · Math · Unit 9 of 12

Fractions

Halves to tenths

What your child practices

Reading and naming fractions from halves to tenths, counting by fractions, comparing them, and seeing 3 × 1/4 as three fourths.

Minnesota K-12 Academic Standards benchmark: 4.3.5.10; 4.3.5.11; 4.3.5.16 · fractions and mixed numbers on a number line, a fraction as a multiple of a unit fraction, and adding fractions

How we explain it

Children can open this short lesson before they practice.

  1. Count by fractions like counting by 1s: 1/4, 2/4, 3/4.
  2. The bottom number tells the size of the parts.
  3. Repeated addition is multiplication: 3 groups of 2/5.

Example: Count by fourths: 1/4, 2/4, 3/4, what comes next? The top number grows by 1. 4/4 is one whole. Answer: 4/4

Fractions in Minnesota

In the Minnesota K-12 Academic Standards, this is unit 9 of 12 in 4th grade Math, after Polygons & Perimeter and before Angles & Area.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Minnesota Department of Education (MDE)

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which is greater, 1/3 or 1/4?

    • 1/3
    • 1/4

  2. Question 2

    Count by fourths. What comes next?

    1/4, 2/4, 3/4,

    • 5/4
    • 3/5
    • 4/4

  3. Question 3

    In 1/8, what does the 8 tell you?

    • how many wholes there are
    • how many equal parts make a whole
    • how many parts are shaded

  4. Question 4

    What fraction of the shape is shaded?

    • 2/3
    • 1/3

  5. Question 5

    Group A shares 5 pizzas among 6 children. Group B shares 1 pizza among 2 children. Which group's children get more each?

    🍕
    • Group A
    • Group B

  6. Question 6

    Count by thirds. What comes next?

    1/3, 2/3,

    • 2/4
    • 4/3
    • 3/3

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