CLICK on the Apple Menu in the upper left corner of your screen.

From the drop-down menu, LOCATE Control Panels.

Follow the arrow across and down with your cursor,
and CHOOSE (click on): Monitors.

EARLY VERSIONS of MAC OS may say "Monitors and Sounds" at this point...
If that's what YOUR Mac says, then CHOOSE "Monitors and Sound."

The Monitor window will open.

Locate "Resolution" on the window, and click to select the new resolution.

A MINIMUM screen resolution of 800 by 600 pixels is highly recommended,
although viewing at a HIGHER resolution is also fine!

Voilà! You've ADJUSTED your screen resolution!

CLICK on the Apple Menu in the upper left corner of your screen.

From the drop-down menu, LOCATE System Preferences.

Follow the arrow across and down with your cursor,
and CHOOSE (click on): Displays.

The Displays window will open.

Choose (click on) the Display tab.

Locate Resolutions on the window, and click to select the new resolution.

A MINIMUM screen resolution of 800 by 600 pixels is highly recommended,
although viewing at a HIGHER resolution is also fine!

Voilà! You've ADJUSTED your screen resolution!