The 3 Reasons Why Are Number Lines Important ~ Master Xuan

Why are number lines important, you ask? Continue to read on this blog post to learn more!

There are many instructional tools we can use when we teach our little learners how to add and subtract. Amidst the myriad options available, the question arises: Why use number lines? What sets them apart from other math tools, and why are they considered indispensable in fostering mathematical understanding among young minds?

In this article, we delve into the three reasons why number lines are important, uncovering the depth and significance that often goes unnoticed.

Help Shift From Counting Model To Measurement Model

Before we jump right into the tool, we can first introduce students to a number track or path to build students’ understanding of the relationship between numbers as a measurement.

Using large-scale number paths can help students make connections between the counting model to the number line structure due to the use of unit length.

Students will get to understand the relative magnitude and position of numbers, as well as to visualize operations.

This resource “Printable Number Lines To 20 – Posters & Scavenger Hunt Task Cards” provides 2 different posters that can be used for number track or path – frog or rabbit.

There is a wall number line that you can use to paste on the walls so that you can refer to it whenever there is a need. There are 2 options inside, one with a ten frame and one without.

Often, students are introduced to a marked number line which helps provide a tangible representation of numerical relationships.

This visual aid allows them to see the progression, intervals, and relationships between numbers.

Easier to understand

An open number line suggests continuity and linearity which require students to just either count/jump forward or backwards only.

When students use the number line, it helps them keep track of their steps, making it easier to solve problems without having to remember too much.

This means that this tool may make it easier to add or subtract, especially so if students have difficulties with regrouping or going through the traditional algorithmic procedures.

Enhancing Communication

Number lines offer a shared visual language that allows teachers and students to show others their thinking processes.

This is especially so when students use an empty number line to record their computation strategies.

Educators can correct any errors in the thinking, or suggest other efficient strategies.

Furthermore, such a visual recording of students’ mental strategies can provide a stimulus for classroom discussion.

It’s like raising your hand and saying, “Hey, look at how I figured this out!” This sharing of ideas not only shows what students know but also helps them learn from each other.

Final Thoughts

Like any mathematical tool, there are benefits and constraints of number lines.

However, educators need to share with students a variety of tools that are useful to them and let them choose which one works for them the most. They need to be accountable for using the suitable tools or strategies to tackle the questions.

Personally, other than the above mentioned reasons, I feel that number lines are important and essential because they will eventually be introduced as part of other math topics even if they are not used as a math tool for addition and subtraction.

For example, reading of measurements, time (drawing of timeline), and graphs.

So, teaching kids to like and be good at using number lines early on helps them understand math better in different areas.

So here is a summary of why are number lines important: