Adding a scale bar on map

[JasonShim]

How do I add a scale bar to my map? I'm currently using Arc GIS V.2.6. I copied these instructions  from Arc GIS Help link.

".......On the Insert tab, in the Map Surrounds group, click the Scale Bar button. Clicking the top half of the button inserts a default scale bar, while clicking the bottom half displays a gallery of all the scale bar style items in the project. Choose a style, and on the layout view, click and drag to create the scale bar...."

I can't find the "Map Surrounds Group"  and the "Scale Bar" buttons on the menu. Can someone guide me on this?

[JayantaPoddar]

You cannot add Scale Bar in Map View.

First, add a Layout View (Insert > New Layout). Once Layout View is added, add a data frame. Then, you can see the Scale Bar in "Map Surrounds".