Subscribe

4th grade · Math · Unit 9 of 15

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.

Alaska content standards learning standard: 4.NF.3; 4.NF.4 · building fractions from unit fractions and multiplying a fraction by a whole number

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 Alaska

In the Alaska content standards, this is unit 9 of 15 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: Alaska Department of Education and Early Development

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

    Count by fourths. What comes next?

    1/4, 2/4,

    • 3/4
    • 4/4
    • 2/5

  2. Question 2

    Count by tenths. What comes next?

    1/10, 2/10, 3/10, 4/10,

    • 5/10
    • 4/11
    • 6/10

  3. Question 3

    Group A shares 1 pizza among 2 children. Group B shares 2 pizzas among 3 children. Which group's children get more each?

    🍕
    • Group A
    • Group B

  4. Question 4

    In 1/4, what does the 1 tell you?

    • how many of the equal parts we have
    • how big the whole is
    • how many equal parts make a whole

  5. Question 5

    What is this repeated addition as a multiplication?

    1/8 + 1/8 + 1/8

    • 3 × 1/8 = 3/24
    • 3 × 1/8 = 3/8
    • 3 × 1/8 = 1/11

  6. Question 6

    What fraction of the shape is shaded?

    • 3/4
    • 2/4
    • 1/4

More 4th grade