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Open Number Line

Open Number Line

The Open Number Line Floor Mat is a long, single-column mat with 20 hash marks equidistant apart
so that they can be used in many different ways to show number sequences. To maximize its flexibility,
it does not come with any numbers written on it.


To create numbers for the number line, you can use large index cards, 5×5 squares of felt, or large
squares of craft foam. Numbers can be written with a thick Sharpie marker. Differently colored cards,
felt, or foam can be used to identify multiples of five, ten, one hundred, or one thousand.


Each activity lends itself to students jumping from number to number and saying the number (or
number value), and/or solving an equation.

Grade 1 - Grade 5
  • Open number line thumbnail

Worksheets

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      1. What’s My Number?

        Label the mat from 100 to 500, placing a multiple of 100 every five hash marks. Place a bean bag (or any marker) at a hash mark and have students...
        Grade 4
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      2. What is the Decimal?

        Use the number line to allow students to figure out decimals of a whole. Place a number 1 label at the fifth hash mark on the mat, a number 2...
        Grade 4, Grade 5
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      3. Thermometer

        Use the number line vertically to represent a thermometer. Label every five marks with a multiple of ten, using the outdoor temperature as your range. For example, If it is...
        Grade 4
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      4. What is the Fraction?

        Use the number line to allow students to figure out fractions of a whole. Place a number 1 label at the fifth hash mark on the mat, a number 2...
        Grade 4
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      5. Ordering Fractions from 0 to 1

        (1) After using concrete models and manipulatives to understand that fractions are equal parts of a whole number, students can begin to place these values on the number line. (2)...
        Grade 3, Grade 4
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      6. Fractions

        (1) Label the first line with a 0 and the eighth line with a 1. Have students count the segments starting with the first line after the 0 as “one”...
        Grade 3
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      7. Multiplication

        Example: 3 x 6 = ___ (1) Place the numbers 0 to 20 on the hash marks, starting with 0 and ending with 20. Explain how 3 x 6 means...
        Grade 3
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      8. Rounding Numbers

        (1) Place the multiples of ten on every other hash mark, starting with 0 and ending with 50. Discuss finding the “half-way” point between 0 and 10 (depending on the...
        Grade 3
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      9. Understanding Halves of Multiples of 10

        (1) Place the multiples of ten on every other hash mark, starting with 0 and ending with 50. Discuss finding the “half-way” point between 0 and 10 (depending on the...
        Grade 2, Grade 3
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      10. Skip Count by 5’s or 10’s from any number

        Place multiples of ten from 0 to 200 on the number line. Ask students to solve 40 + ___ = 170. The student begins at 40 and skip counts by...
        Grade 2
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