Two scrollable number lines for the interactive whiteboard.  One that covers negative numbers; one that starts at zero. 

 Go to standard numberline

Go to negative number line

Get instructions

Use the arrow buttons to scroll quickly or slowly though the numbers. 

Click on a bar below a number once to highlight it.  Click it a second time for it to attach an arrow marking the number ten higher or ten lower depending on the option selected selected on the two lower Count buttons.