The Number Line is a powerful mathematical tool that can be used to represent numbers and build an understanding of various operations. The current version of this tool has been designed to model addition and subtraction of both whole numbers and integers. This tool can also be used to represent, order and compare numbers.

Whole Number Example 1 There were 4 birds in a tree and then some more birds landed in the tree. Now there are 11 birds in the tree. How many more birds landed in the tree?

Whole Number Example 2 Bob combined two Lego kits. One kit had 325 pieces and the other had 496 pieces. How many pieces does he have in all? Use math tools or models to justify your answer.

Integer Example 1 The temperature at 7 am was +3°C. It rose 6°C by noon and then dropped 13°C by 7pm. What was the temperature at 7pm?

Integer Example 2
I deposited a cheque for $320 dollars and then withdrew $400.
What is the overall change in the value of my bank balance?

top Decimals and Fractions Examples
Although the Number Line Tool is currently designed for Whole Numbers and Integers, it can be used to solve decimal and fractions questions with a little imagination. The following short videos show some examples. Decimals Fractions (Method 1) Fractions (Method 2)

Make notes or highlight various features of your representation. More details.

Insert Image Button

You can insert images into the tool (as of version 1.1.0). More details.

Undo/Redo

Step backward or forward through your actions with the tool.

This feature is not only useful for backtracking when a misstep is made, it enables a student to demonstrate their work from the start to the finish. They press Undo until they are at the start of their solution and then press Redo repeatedly, explaining each step.

Reset

Delete all your work and return the tool to its starting state.

Information

Access a link to this wiki, a feedback form as well as copyright details and version number.

Settings

Adjust scale, number format, where + signs show.

Hide/show active areas.

Restore the tool to its default settings.

Recycle

(in the work space)

Click to clear the entire work space.

Alternatively, drag items to the recycle bin to remove them.

Recycle

(a specific object)

Click to remove the selected object.

Number Line Button Panel

This collapsible panel provides easy access to all of the Number Line

specific settings described in detail below. Green highlights indicate that the setting is active. Click the white arrow to hide/show the panel.

Number Line Orientation

Switch between a horizontal or a vertical number line.

Representation Objects

Choose between vectors, hops, ribbons or magnitude bars.

Labels

Hide/show labels on representation objects and/or number line.

Unit Ticks

Hide/Show unit ticks on the representation objects.

Object Linking

Allow/disallow the linking of representation objects.

Linked objects move as one entity. Objects that are linked together are shown in light green. Objects that are not linked together are shown in dark green.

Drop Dashes

Hide/show drop dashes from the ends of the objects to the number line.

On the desktop version of this tool, the standard Keyboard Shortcuts for Undo, Redo, and Delete have been implemented.
In addition, the shortcuts for zooming in and out have been implemented as indicated above as well as shortcuts for working with imported images.

How - To Videos

Zooming and Panning to Compare Numbers

This video shows how to use the number line tool to compare 51 342 and 41 270.
It shows how to set a custom scale and use the zooming and panning features in order to plot these points.

Adjusting the Scale

Addition and Subtraction Examples

Multiplication Examples

Division Examples

Decimals and Fractions Examples

Features of the Tool

Zooming and Panning

Keyboard Shortcuts

How-To Videos

PDF Supports

The

Number Lineis a powerful mathematical tool that can be used to represent numbers and build an understanding of various operations.The current version of this tool has been designed to model addition and subtraction of both whole numbers and integers.

This tool can also be used to represent, order and compare numbers.

Take a screenshot of your work to share with your teacher or add to a portfolio.

You can insert pictures into the Tool using thebutton.

Representing Numberseg. Sandy had 8 cookies. Her mother gave her two more, then she gave three to her brother.

Adjusting the ScaleSet the Minimum and Maximum values.

Addition and Subtraction ExamplesWhole Number Example 1There were 4 birds in a tree and then some more birds landed in the tree.

Now there are 11 birds in the tree. How many more birds landed in the tree?

Whole Number Example 2Bob combined two Lego kits.

One kit had 325 pieces and the other had 496 pieces.

How many pieces does he have in all? Use math tools or models to justify your answer.

Integer Example 1The temperature at 7 am was +3°C.

It rose 6°C by noon and then dropped 13°C by 7pm.

What was the temperature at 7pm?

nteger Example 2I deposited a cheque for $320 dollars and then withdrew $400.

What is the overall change in the value of my bank balance?

## Multiplication Examples

## Multiplying 2-digit Numbers

top

## Division Examples

## Dividing Whole Numbers

top

Decimals and Fractions ExamplesAlthough the Number Line Tool is currently designed for Whole Numbers and Integers, it can be used to solve decimal and fractions questions with a little imagination. The following short videos show some examples.

Decimals

Fractions (Method 1)

Fractions (Method 2)

top

## Features of the Tool

## Annotation Tool

## Make notes or highlight various features of your representation. More details.

## Insert Image Button

## You can insert images into the tool (as of version 1.1.0). More details.

## Undo/Redo

## Step backward or forward through your actions with the tool.

This feature is not only useful for backtracking when a misstep is made, it enables a student to demonstrate their work from the start to the finish. They press Undo until they are at the start of their solution and then press Redo repeatedly, explaining each step.

## Reset

## Delete all your work and return the tool to its starting state.

## Information

## Access a link to this wiki, a feedback form as well as copyright details and version number.

## Settings

## Adjust scale, number format, where + signs show.

## Hide/show active areas.

## Restore the tool to its default settings.

## Recycle

## (in the work space)

## Click to clear the entire work space.

Alternatively, drag items to the recycle bin to remove them.Recycle## (a specific object)

## Click to remove the selected object.

Number Line Button Panel## This collapsible panel provides easy access to all of the Number Line

specific settings described in detail below.Green highlights indicate that the setting is active.

Click the white arrow to hide/show the panel.

Number Line Orientation## Switch between a horizontal or a vertical number line.

Representation Objects## Choose between vectors, hops, ribbons or magnitude bars.

Labels## Hide/show labels on representation objects and/or number line.

## Unit Ticks

## Hide/Show unit ticks on the representation objects.

## Object Linking

## Allow/disallow the linking of representation objects.

Linked objects move as one entity.Objects that are linked together are shown in light green.

Objects that are not linked together are shown in dark green.

## Drop Dashes

## Hide/show drop dashes from the ends of the objects to the number line.

## Label Size

## Increase/decrease label size.

Zooming and Panning## Keyboard Shortcuts

On the desktop version of this tool, the standard Keyboard Shortcuts for Undo, Redo, and Delete have been implemented.In addition, the shortcuts for zooming in and out have been implemented as indicated above as well as shortcuts for working with imported images.

How - To Videos## Zooming and Panning to Compare Numbers

This video shows how to use the number line tool to compare 51 342 and 41 270.It shows how to set a custom scale and use the zooming and panning features in order to plot these points.

## PDF Supports

mathies Number Line Learning Tool Tip SheetVisit EDUGAINS for various Tip Sheets.

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