Switching off the rotation lock symbol

Swipe up from below the bottom of the screen to reveal the control center, and turn it off.

It's on the Control Panel. When you have the lock screen swipe up from the bottom to open it, there is an icon that is in the upper group of gadgets that looks like a rotation circle. That's the rotation gadget.

If you have a bell with a line through it instead of the lock-rotation icon showing in the Control Center you must ust the side switch to turn off the lock-rotation icon

iPad Air doesn't have a side switch.

Last time I looked it had one. 🙂

Sorry, I was thinking iPad Air 2, which your image shows does not.

I hadn't thought of including a photo for an iPad Air for clarity. thank you. I used that photo a couple of days ago to help explain what a side switch is. The person had his iPad Air over a year and didn't know he had a side switch.